pagein-0.01.07/0000775000175000017500000000000014144535132012076 5ustar ckingckingpagein-0.01.07/pagein.c0000664000175000017500000002373114144535126013516 0ustar ckingcking/* * Copyright (C) 2016-2021 Canonical, Ltd. * Copyright (C) 2021 Colin Ian King * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define APP_NAME "pagein" #define PAGE_4K (4096) #define STACK_ALIGNMENT (64) #define OPT_VERBOSE (0x00000001) #define OPT_ALL (0x00000002) #define OPT_BY_PID (0x00000004) #define GOT_MEMFREE (0x01) #define GOT_SWAPFREE (0x02) #define GOT_ALL (GOT_MEMFREE | GOT_SWAPFREE) static uint16_t opt_flags; static sigjmp_buf jmp_env; static void sigsegv_handler(int sig) { static bool faulted = false; (void)sig; if (!faulted) { faulted = true; /* Don't double fault */ siglongjmp(jmp_env, 1); } } /* * align_address * align address to alignment, alignment MUST be a power of 2 */ static inline void *align_address(const void *addr, const size_t alignment) { const uintptr_t uintptr = ((uintptr_t)addr + alignment) & ~(alignment - 1); return (void *)uintptr; } /* * get_page_size() * get page size */ static inline int32_t get_page_size(void) { int32_t page_size; #ifdef _SC_PAGESIZE static int32_t sz; /* static noclobber */ sz = sysconf(_SC_PAGESIZE); page_size = (sz <= 0) ? PAGE_4K : sz; #else page_size = PAGE_4K; #endif return page_size; } /* * get_memstats() * get some pertinent memory statistics from /proc/meminfo */ static int get_memstats(int64_t *const memfree, int64_t *const swapfree) { FILE *fp; char buffer[4096]; uint8_t got = 0; *memfree = 0; *swapfree = 0; fp = fopen("/proc/meminfo", "r"); if (!fp) return -errno; while (fgets(buffer, sizeof(buffer), fp)) { if ((strstr(buffer, "MemFree:")) && (sscanf(buffer, "%*s %" SCNd64, memfree) == 1)) { got |= GOT_MEMFREE; continue; } if ((strstr(buffer, "SwapFree:")) && (sscanf(buffer, "%*s %" SCNd64, swapfree) == 1)) { got |= GOT_SWAPFREE; } if ((got & GOT_ALL) == GOT_ALL) break; } (void)fclose(fp); return 0; } /* * show_help() * show command help info */ static void show_help(void) { (void)printf(APP_NAME ":\n"); (void)printf("Usage: " APP_NAME " [OPTION [ARG]]\n"); (void)printf("-a\tpage in pages in all processes\n"); (void)printf("-h\tshow help\n"); (void)printf("-p pid\tpull in pages on specified process\n"); (void)printf("-v\tverbose mode\n"); (void)printf("Note: to page in all processes, run with root privilege\n"); } /* * pagein_proc() * try to force page in pages for a specific process */ static int pagein_proc( const int32_t page_size, const pid_t pid, int32_t *const procs, int64_t *const total_pages_touched, int64_t *const total_pages_skipped, int64_t *const total_mappings) { char path[PATH_MAX]; char buffer[4096]; int fdmem, rc = 0, ret; FILE *fpmap; size_t pages = 0, pages_touched = 0; bool has_maps = false; if (pid == getpid()) return 0; (void)snprintf(path, sizeof(path), "/proc/%d/mem", pid); fdmem = open(path, O_RDONLY); if (fdmem < 0) { rc = -errno; goto err_ret; } (void)snprintf(path, sizeof(path), "/proc/%d/maps", pid); fpmap = fopen(path, "r"); if (!fpmap) { rc = -errno; goto err_close_fdmem; } ret = ptrace(PTRACE_ATTACH, pid, NULL, NULL); if (ret < 0) { rc = -errno; goto err_close_all; } (void)waitpid(pid, NULL, 0); /* * Look for field 0060b000-0060c000 r--p 0000b000 08:01 1901726 */ while (fgets(buffer, sizeof(buffer), fpmap)) { uint64_t begin, end, len; uintptr_t off; char tmppath[1024]; char prot[5]; if (sscanf(buffer, "%" SCNx64 "-%" SCNx64 " %5s %*x %*x:%*x %*d %1023s", &begin, &end, prot, tmppath) != 4) continue; (*total_mappings)++; len = end - begin; if (prot[0] != 'r' && prot[3] != 'p') { *total_pages_skipped += (len / page_size); continue; } if ((begin >= end) || (len == 0)) continue; has_maps = true; for (off = begin; off < end; off += page_size, pages++) { unsigned long data; off_t pos; (void)ptrace(PTRACE_PEEKDATA, pid, (void *)off, &data); pos = lseek(fdmem, (off_t)off, SEEK_SET); if (pos == (off_t)off) { size_t sz; sz = read(fdmem, &data, sizeof data); (void)sz; } pages_touched++; } } (void)ptrace(PTRACE_DETACH, pid, NULL, NULL); /* * Kernel threads don't have maps, so don't * count these in the stats */ if (has_maps) { (*procs)++; *total_pages_touched += pages_touched; } if (opt_flags & OPT_VERBOSE) { (void)printf("PID:%6d, %12zu pages, %12" PRId64 " pages touched\r", pid, pages, *total_pages_touched); (void)fflush(stdout); } err_close_all: (void)fclose(fpmap); err_close_fdmem: (void)close(fdmem); err_ret: return rc; } /* * pagein_all_procs() * attempt to page in all processes */ static inline int pagein_all_procs( const int32_t page_size, int32_t *const procs, int32_t *const total_procs, int64_t *const total_pages_touched, int64_t *const total_pages_skipped, int64_t *const total_mappings) { DIR *dp; struct dirent *d; dp = opendir("/proc"); if (!dp) return -1; while ((d = readdir(dp)) != NULL) { pid_t pid; if (isdigit(d->d_name[0]) && sscanf(d->d_name, "%d", &pid) == 1) { *total_procs += 1; pagein_proc(page_size, pid, procs, total_pages_touched, total_pages_skipped, total_mappings); } } (void)closedir(dp); return 0; } int main(int argc, char **argv) { int64_t memfree_begin = 0, memfree_end = 0; int64_t swapfree_begin = 0, swapfree_end = 0; int64_t delta; int64_t total_pages_touched = 0ULL; int64_t total_pages_skipped = 0ULL; int64_t total_mappings = 0ULL; static int32_t total_procs = 0; /* static noclobber */ int32_t procs = 0; const int32_t page_size = get_page_size(); const int32_t scale = page_size / 1024; static pid_t pid = -1; /* static noclobber */ struct rusage usage; struct sigaction action; stack_t ss; uint8_t stack[SIGSTKSZ + STACK_ALIGNMENT]; for (;;) { int c = getopt(argc, argv, "ahp:v"); if (c == -1) break; switch (c) { case 'a': opt_flags |= OPT_ALL; break; case 'h': show_help(); exit(EXIT_SUCCESS); break; case 'p': opt_flags |= OPT_BY_PID; pid = atoi(optarg); if (pid < 1) { (void)fprintf(stderr, "bad pid: %d\n", pid); exit(EXIT_FAILURE); } break; case 'v': opt_flags |= OPT_VERBOSE; break; default: show_help(); exit(EXIT_FAILURE); } } if ((opt_flags & (OPT_ALL | OPT_BY_PID)) == (OPT_ALL | OPT_BY_PID)) { (void)fprintf(stderr, "must not use -a and -p options together\n"); exit(EXIT_FAILURE); } if ((opt_flags & (OPT_ALL | OPT_BY_PID)) == 0) { (void)fprintf(stderr, "must use one of -a or -p, use -h for more details\n"); exit(EXIT_FAILURE); } if (sigsetjmp(jmp_env, 1) == 1) { (void)printf("Aborted early, hit a page fault\n"); goto finish; } ss.ss_sp = align_address(&stack, STACK_ALIGNMENT); ss.ss_size = SIGSTKSZ; ss.ss_flags = 0; if (sigaltstack(&ss, NULL) < 0) { (void)fprintf(stderr, "cannot set sigaltstack stack\n"); exit(EXIT_FAILURE); } (void)memset(&action, 0, sizeof(action)); (void)sigemptyset(&action.sa_mask); action.sa_handler = sigsegv_handler; action.sa_flags = SA_ONSTACK; if (sigaction(SIGSEGV, &action, NULL) < 0) { (void)fprintf(stderr, "cannot set signal handler\n"); exit(EXIT_FAILURE); } get_memstats(&memfree_begin, &swapfree_begin); if (opt_flags & OPT_ALL) pagein_all_procs(page_size, &procs, &total_procs, &total_pages_touched, &total_pages_skipped, &total_mappings); if (opt_flags & OPT_BY_PID) { int ret; ret = pagein_proc(page_size, pid, &procs, &total_pages_touched, &total_pages_skipped, &total_mappings); if (ret < 0) { (void)fprintf(stderr, "cannot page in PID %d errno = %d (%s)\n", pid, -ret, strerror(-ret)); (void)fprintf(stderr, " Note: this is normally because of ptrace PTRACE_MODE_ATTACH_FSCREDS access\n"); (void)fprintf(stderr, " mode failure of pagein. pagein needs to be run with the CAP_SYS_PTRACE\n"); (void)fprintf(stderr, " capability (for example, run pagein as root).\n"); exit(EXIT_FAILURE); } } get_memstats(&memfree_end, &swapfree_end); if (opt_flags & OPT_VERBOSE) (void)printf("%-60.60s\r", ""); finish: if (opt_flags & OPT_ALL) { (void)printf("Processes scanned: %" PRIu32 "\n", total_procs); (void)printf("Processes touched: %" PRIu32 "\n", procs); } (void)printf("Page mappings visited: %" PRIu64 "\n", total_mappings); (void)printf("Pages touched: %" PRIu64 "\n", total_pages_touched); (void)printf("Pages skipped: %" PRIu64 " (unreadable)\n", total_pages_skipped); delta = memfree_begin - memfree_end; (void)printf("Free memory decrease: %" PRId64 "K (%" PRId64 " pages)\n", delta, delta / scale); delta = swapfree_begin - swapfree_end; (void)printf("Swap memory decrease: %" PRId64 "K (%" PRId64 " pages)\n", delta, delta / scale); if (getrusage(RUSAGE_SELF, &usage) == 0) { (void)printf("Page faults major: %lu\n", usage.ru_majflt); (void)printf("Page faults minor: %lu\n", usage.ru_minflt); (void)printf("Swaps: %lu\n", usage.ru_nswap); } return EXIT_SUCCESS; } pagein-0.01.07/bash-completion/0000775000175000017500000000000014144535126015165 5ustar ckingckingpagein-0.01.07/bash-completion/pagein0000664000175000017500000000235214144535126016355 0ustar ckingcking# pagein tab completion for bash. # # Copyright (C) 2020-2021 Canonical # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. _pagein() { local cur prev words cword _init_completion || return case "$prev" in '-p') COMPREPLY=( $(compgen -W '$(command ps axo pid | sed 1d) ' $cur ) ) return 0 ;; esac case "$cur" in -*) OPTS="-a -h -p -v" COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) ) return 0 ;; esac return 0 } # load the completion complete -F _pagein pagein pagein-0.01.07/README.md0000664000175000017500000000121714144535126013361 0ustar ckingcking# Pagein Pagein is a tool that forces pages that are in swap to be paged in back to memory. The main usecase for pagein is to exercise the VM and swap subsystems for testing purposes. pagein command line options: * -a try to page in all processes. * -h help * -p page in process with process ID pid * -v verbose mode ## Example: ``` sudo pagein -a Processes scanned: 271 Kernel threads: 130 (skipped) Processes touched: 140 Pages touched: 1834340 Free memory decrease: 2233252K (558313 pages) Swap memory decrease: -27012K (-6753 pages) Page faults major: 2850 Page faults minor: 468453 Swaps: 0 ``` pagein-0.01.07/pagein.10000664000175000017500000000415514144535126013433 0ustar ckingcking.\" Hey, EMACS: -*- nroff -*- .\" First parameter, NAME, should be all caps .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection .\" other parameters are allowed: see man(7), man(1) .TH PAGEIN 1 "15 November 2021" .\" Please adjust this date whenever revising the manpage. .\" .\" Some roff macros, for reference: .\" .nh disable hyphenation .\" .hy enable hyphenation .\" .ad l left justify .\" .ad b justify to both left and right margins .\" .nf disable filling .\" .fi enable filling .\" .br insert line break .\" .sp insert n+1 empty lines .\" for manpage-specific macros, see man(7) .SH NAME pagein \- a tool to force swapped out pages back into memory .br .SH SYNOPSIS .B pagein .RI [ \-a ] .RI [ \-h ] .RI [ \-p\ pid ] .RI [ \-v ] .br .SH DESCRIPTION Pagein is a tool that forces pages that are in swap to be paged in back to memory. The main usecase for pagein is to exercise the VM and swap subsystems for testing purposes. .SH OPTIONS pagein options are as follow: .TP .B \-a try to page in all processes. This needs to be run with root privilege to allow pagein to access all the processes. Cannot be used with the \-p option. .TP .B \-h show help information. .TP .B \-p pid page in process with process ID pid. Cannot be used with the \-a option. Processes not owned by the user need to be paged in by running pagein with root privilege. .TP .B \-v verbose mode, shows progress and paging in statistics, useful with the \-a option. .SH EXAMPLES .LP Page in all processes and show progress: .RS 8 sudo pagein \-a \-v .RE .LP Page in the Xorg process: .RS 8 sudo pagein \-p $(pidof Xorg) .RE .SH SEE ALSO .BR free (1) .SH AUTHOR pagein was written by Colin Ian King .PP This manual page was written by Colin Ian King for the Ubuntu project (but may be used by others). .SH COPYRIGHT Copyright \(co 2016-2021 Canonical Ltd, Copyright \(co 2021 Colin Ian King. .br This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. pagein-0.01.07/COPYING0000664000175000017500000004325414144535126013144 0ustar ckingcking GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. pagein-0.01.07/Makefile0000664000175000017500000000361014144535126013541 0ustar ckingcking# # Copyright (C) 2016-2021 Canonical, Ltd. # Copyright (C) 2021 Colin Ian King # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. # VERSION=0.01.07 CFLAGS += -Wall -Wextra -DVERSION='"$(VERSION)"' -O2 # # Pedantic flags # ifeq ($(PEDANTIC),1) CFLAGS += -Wabi -Wcast-qual -Wfloat-equal -Wmissing-declarations \ -Wmissing-format-attribute -Wno-long-long -Wpacked \ -Wredundant-decls -Wshadow -Wno-missing-field-initializers \ -Wno-missing-braces -Wno-sign-compare -Wno-multichar endif export DEB_BUILD_HARDENING=1 BINDIR=/usr/bin MANDIR=/usr/share/man/man1 BASHDIR=/usr/share/bash-completion/completions pagein: pagein.o $(CC) $(CPPFLAGS) $(CFLAGS) $< -o $@ $(LDFLAGS) pagein.1.gz: pagein.1 gzip -c $< > $@ dist: rm -rf pagein-$(VERSION) mkdir pagein-$(VERSION) cp -rp Makefile pagein.c pagein.1 COPYING snap .travis.yml \ bash-completion README.md pagein-$(VERSION) tar -zcf pagein-$(VERSION).tar.gz pagein-$(VERSION) rm -rf pagein-$(VERSION) clean: rm -f pagein pagein.o pagein.1.gz rm -f pagein-$(VERSION).tar.gz install: pagein pagein.1.gz mkdir -p ${DESTDIR}${BINDIR} cp pagein ${DESTDIR}${BINDIR} mkdir -p ${DESTDIR}${MANDIR} cp pagein.1.gz ${DESTDIR}${MANDIR} mkdir -p ${DESTDIR}${BASHDIR} cp bash-completion/pagein ${DESTDIR}${BASHDIR} pagein-0.01.07/snap/0000775000175000017500000000000014144535126013042 5ustar ckingckingpagein-0.01.07/snap/snapcraft.yaml0000664000175000017500000000242114144535126015706 0ustar ckingckingname: pagein summary: tool to force swapped out pages back into memory description: Pagein is a tool that forces pages that are in swap to be paged in back to memory. The main usecase for pagein is to exercise the VM and swap subsystems for testing purposes. confinement: devmode type: app grade: stable assumes: [snapd2.45] base: core20 adopt-info: pagein architectures: - build-on: s390x - build-on: ppc64el - build-on: arm64 - build-on: armhf - build-on: amd64 - build-on: i386 parts: pagein: plugin: make source-type: git source: https://github.com/ColinIanKing/pagein override-pull: | snapcraftctl pull description="$(git describe HEAD --tags)" sha=$(echo $description | tr '-' ' ' | awk '{print $NF}') version=${description%$sha} commits=$(git log --oneline | wc -l) date=$(date +'%Y%m%d') if test "$description" = "$sha" then version="$description" else version=$(echo $version$date-$commits-$sha | cut -c1-32) fi snapcraftctl set-version "$version" build-packages: - gcc - make apps: pagein: command: usr/bin/pagein pagein-0.01.07/snap/Makefile0000664000175000017500000000007614144535126014505 0ustar ckingckingall: snapcraft clean: rm -rf setup *.snap snapcraft clean pagein-0.01.07/.travis.yml0000664000175000017500000000033114144535126014207 0ustar ckingckingdist: bionic sudo: required matrix: include: - env: PEDANTIC=1 before_install: - sudo apt-get update -q - sudo apt-get install build-essential language: c script: - make -j2 PEDANTIC=$PEDANTIC