From 66bac0e12073d1c2c989d6a90c88aa2ac2644a79 Mon Sep 17 00:00:00 2001 From: Mark Nellemann Date: Sat, 12 Nov 2022 14:32:31 +0100 Subject: [PATCH] Provide argument for sleep-time --- README.md | 46 +++++++++-------- main.c | 151 +++++++++++++++++++++++++++++------------------------- 2 files changed, 107 insertions(+), 90 deletions(-) diff --git a/README.md b/README.md index 5af69a1..fc5658d 100644 --- a/README.md +++ b/README.md @@ -5,25 +5,29 @@ Test code for [investigating](https://github.com/oshi/oshi/issues/2239) *wierd* Example from PowerVS AIX 7.3 ``` -# ./test -hdisk0 => reads: [ blocks: 1995768 ( 0 ), bytes: 1021833216 ( 0 ) ], writes: [ blocks: 126169 ( 0 ), bytes: 64598528 ( 0 ) ] -hdisk0 => reads: [ blocks: 1999986 ( 4218 ), bytes: 1023992832 ( 2159616 ) ], writes: [ blocks: 126241 ( 72 ), bytes: 64635392 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2004196 ( 4210 ), bytes: 1026148352 ( 2155520 ) ], writes: [ blocks: 126321 ( 80 ), bytes: 64676352 ( 40960 ) ] -hdisk0 => reads: [ blocks: 2008406 ( 4210 ), bytes: 1028303872 ( 2155520 ) ], writes: [ blocks: 126393 ( 72 ), bytes: 64713216 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2012616 ( 4210 ), bytes: 1030459392 ( 2155520 ) ], writes: [ blocks: 127321 ( 928 ), bytes: 65188352 ( 475136 ) ] -hdisk0 => reads: [ blocks: 2016826 ( 4210 ), bytes: 1032614912 ( 2155520 ) ], writes: [ blocks: 127393 ( 72 ), bytes: 65225216 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2021036 ( 4210 ), bytes: 1034770432 ( 2155520 ) ], writes: [ blocks: 127465 ( 72 ), bytes: 65262080 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2025246 ( 4210 ), bytes: 1036925952 ( 2155520 ) ], writes: [ blocks: 127537 ( 72 ), bytes: 65298944 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2029456 ( 4210 ), bytes: 1039081472 ( 2155520 ) ], writes: [ blocks: 127617 ( 80 ), bytes: 65339904 ( 40960 ) ] -hdisk0 => reads: [ blocks: 2033666 ( 4210 ), bytes: 1041236992 ( 2155520 ) ], writes: [ blocks: 127689 ( 72 ), bytes: 65376768 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2037876 ( 4210 ), bytes: 1043392512 ( 2155520 ) ], writes: [ blocks: 128033 ( 344 ), bytes: 65552896 ( 176128 ) ] -hdisk0 => reads: [ blocks: 2042094 ( 4218 ), bytes: 1045552128 ( 2159616 ) ], writes: [ blocks: 128113 ( 80 ), bytes: 65593856 ( 40960 ) ] -hdisk0 => reads: [ blocks: 2046304 ( 4210 ), bytes: 1047707648 ( 2155520 ) ], writes: [ blocks: 128185 ( 72 ), bytes: 65630720 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2050514 ( 4210 ), bytes: 1049863168 ( 2155520 ) ], writes: [ blocks: 128257 ( 72 ), bytes: 65667584 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2054724 ( 4210 ), bytes: 1052018688 ( 2155520 ) ], writes: [ blocks: 128329 ( 72 ), bytes: 65704448 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2058934 ( 4210 ), bytes: 1054174208 ( 2155520 ) ], writes: [ blocks: 128441 ( 112 ), bytes: 65761792 ( 57344 ) ] -hdisk0 => reads: [ blocks: 2063152 ( 4218 ), bytes: 1056333824 ( 2159616 ) ], writes: [ blocks: 129297 ( 856 ), bytes: 66200064 ( 438272 ) ] -hdisk0 => reads: [ blocks: 2067362 ( 4210 ), bytes: 1058489344 ( 2155520 ) ], writes: [ blocks: 129369 ( 72 ), bytes: 66236928 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2071572 ( 4210 ), bytes: 1060644864 ( 2155520 ) ], writes: [ blocks: 129441 ( 72 ), bytes: 66273792 ( 36864 ) ] -hdisk0 => reads: [ blocks: 2075782 ( 4210 ), bytes: 1062800384 ( 2155520 ) ], writes: [ blocks: 129521 ( 80 ), bytes: 66314752 ( 40960 ) ] +# ./aix-disk-perfstat 2 +Sat Nov 12 14:29:28 2022 - hdisk0 => reads: [ blocks: 41710376 ( 0 ), bytes: 4175843328 ( 0 ) ], writes: [ blocks: 52579577 ( 0 ), bytes: 1150939648 ( 0 ) ] +Sat Nov 12 14:29:30 2022 - hdisk0 => reads: [ blocks: 41710376 ( 0 ), bytes: 4175843328 ( 0 ) ], writes: [ blocks: 52579577 ( 0 ), bytes: 1150939648 ( 0 ) ] +Sat Nov 12 14:29:32 2022 - hdisk0 => reads: [ blocks: 41710376 ( 0 ), bytes: 4175843328 ( 0 ) ], writes: [ blocks: 52580401 ( 824 ), bytes: 1151361536 ( 421888 ) ] +Sat Nov 12 14:29:34 2022 - hdisk0 => reads: [ blocks: 41714586 ( 4210 ), bytes: 4177998848 ( 2155520 ) ], writes: [ blocks: 52580473 ( 72 ), bytes: 1151398400 ( 36864 ) ] +Sat Nov 12 14:29:36 2022 - hdisk0 => reads: [ blocks: 41714586 ( 0 ), bytes: 4177998848 ( 0 ) ], writes: [ blocks: 52580473 ( 0 ), bytes: 1151398400 ( 0 ) ] +Sat Nov 12 14:29:38 2022 - hdisk0 => reads: [ blocks: 41714586 ( 0 ), bytes: 4177998848 ( 0 ) ], writes: [ blocks: 52580473 ( 0 ), bytes: 1151398400 ( 0 ) ] +Sat Nov 12 14:29:40 2022 - hdisk0 => reads: [ blocks: 41714586 ( 0 ), bytes: 4177998848 ( 0 ) ], writes: [ blocks: 52580473 ( 0 ), bytes: 1151398400 ( 0 ) ] +Sat Nov 12 14:29:42 2022 - hdisk0 => reads: [ blocks: 41714586 ( 0 ), bytes: 4177998848 ( 0 ) ], writes: [ blocks: 52580473 ( 0 ), bytes: 1151398400 ( 0 ) ] +Sat Nov 12 14:29:44 2022 - hdisk0 => reads: [ blocks: 41718796 ( 4210 ), bytes: 4180154368 ( 2155520 ) ], writes: [ blocks: 52580553 ( 80 ), bytes: 1151439360 ( 40960 ) ] +Sat Nov 12 14:29:46 2022 - hdisk0 => reads: [ blocks: 41718796 ( 0 ), bytes: 4180154368 ( 0 ) ], writes: [ blocks: 52580553 ( 0 ), bytes: 1151439360 ( 0 ) ] +Sat Nov 12 14:29:48 2022 - hdisk0 => reads: [ blocks: 41718796 ( 0 ), bytes: 4180154368 ( 0 ) ], writes: [ blocks: 52580553 ( 0 ), bytes: 1151439360 ( 0 ) ] +Sat Nov 12 14:29:50 2022 - hdisk0 => reads: [ blocks: 41718796 ( 0 ), bytes: 4180154368 ( 0 ) ], writes: [ blocks: 52580553 ( 0 ), bytes: 1151439360 ( 0 ) ] +Sat Nov 12 14:29:52 2022 - hdisk0 => reads: [ blocks: 41718796 ( 0 ), bytes: 4180154368 ( 0 ) ], writes: [ blocks: 52580553 ( 0 ), bytes: 1151439360 ( 0 ) ] +Sat Nov 12 14:29:54 2022 - hdisk0 => reads: [ blocks: 41723006 ( 4210 ), bytes: 4182309888 ( 2155520 ) ], writes: [ blocks: 52580625 ( 72 ), bytes: 1151476224 ( 36864 ) ] +Sat Nov 12 14:29:56 2022 - hdisk0 => reads: [ blocks: 41723006 ( 0 ), bytes: 4182309888 ( 0 ) ], writes: [ blocks: 52580625 ( 0 ), bytes: 1151476224 ( 0 ) ] +Sat Nov 12 14:29:58 2022 - hdisk0 => reads: [ blocks: 41723006 ( 0 ), bytes: 4182309888 ( 0 ) ], writes: [ blocks: 52580625 ( 0 ), bytes: 1151476224 ( 0 ) ] +Sat Nov 12 14:30:00 2022 - hdisk0 => reads: [ blocks: 41723006 ( 0 ), bytes: 4182309888 ( 0 ) ], writes: [ blocks: 52580625 ( 0 ), bytes: 1151476224 ( 0 ) ] +Sat Nov 12 14:30:02 2022 - hdisk0 => reads: [ blocks: 41723006 ( 0 ), bytes: 4182309888 ( 0 ) ], writes: [ blocks: 52580657 ( 32 ), bytes: 1151492608 ( 16384 ) ] +Sat Nov 12 14:30:04 2022 - hdisk0 => reads: [ blocks: 41727216 ( 4210 ), bytes: 4184465408 ( 2155520 ) ], writes: [ blocks: 52580737 ( 80 ), bytes: 1151533568 ( 40960 ) ] +Sat Nov 12 14:30:06 2022 - hdisk0 => reads: [ blocks: 41727216 ( 0 ), bytes: 4184465408 ( 0 ) ], writes: [ blocks: 52580737 ( 0 ), bytes: 1151533568 ( 0 ) ] +Sat Nov 12 14:30:08 2022 - hdisk0 => reads: [ blocks: 41727216 ( 0 ), bytes: 4184465408 ( 0 ) ], writes: [ blocks: 52580737 ( 0 ), bytes: 1151533568 ( 0 ) ] +Sat Nov 12 14:30:10 2022 - hdisk0 => reads: [ blocks: 41727216 ( 0 ), bytes: 4184465408 ( 0 ) ], writes: [ blocks: 52580737 ( 0 ), bytes: 1151533568 ( 0 ) ] +Sat Nov 12 14:30:12 2022 - hdisk0 => reads: [ blocks: 41727216 ( 0 ), bytes: 4184465408 ( 0 ) ], writes: [ blocks: 52580737 ( 0 ), bytes: 1151533568 ( 0 ) ] +Sat Nov 12 14:30:14 2022 - hdisk0 => reads: [ blocks: 41731426 ( 4210 ), bytes: 4186620928 ( 2155520 ) ], writes: [ blocks: 52580849 ( 112 ), bytes: 1151590912 ( 57344 ) ] ``` diff --git a/main.c b/main.c index 1ea3aa6..cd1c4a6 100644 --- a/main.c +++ b/main.c @@ -10,103 +10,117 @@ Modified example from: https://www.ibm.com/docs/en/aix/7.3?topic=interfaces-perf #include #include +const int true = 1; +const int false = 0; + + int startsWith(const char *a, const char *b) { - if(strncmp(a, b, strlen(b)) == 0) return 1; - return 0; + if(strncmp(a, b, strlen(b)) == 0) return true; + return false; } int main(int argc, char* argv[]) { - int i, ret, tot; - perfstat_disk_t *statp; - perfstat_id_t first; + + int i, ret, tot, sleepSecs; + perfstat_disk_t *statp; + perfstat_id_t first; time_t now; - /* check how many perfstat_disk_t structures are available */ - tot = perfstat_disk(NULL, NULL, sizeof(perfstat_disk_t), 0); + if(argc == 2) { + char *a = argv[1]; + sleepSecs = atoi(a); + } else { + sleepSecs = 10; + } + + + /* check how many perfstat_disk_t structures are available */ + tot = perfstat_disk(NULL, NULL, sizeof(perfstat_disk_t), 0); + + /* check for error */ + if (tot < 0) { + perror("perfstat_disk"); + exit(-1); + } + if (tot == 0) { + printf("No disks found in the system\n"); + exit(-1); + } + + /* keep previous values to calculate difference */ + long history[32][8] = { 0 }; + + /* allocate enough memory for all the structures */ + statp = calloc(tot, sizeof(perfstat_disk_t)); + + /* set name to first interface */ + strcpy(first.name, FIRST_DISK); + + while (1) + { + + /* ask to get all the structures available in one call */ + /* return code is number of structures returned */ + ret = perfstat_disk(&first, statp, sizeof(perfstat_disk_t), tot); /* check for error */ - if (tot < 0) { + if (ret <= 0) { perror("perfstat_disk"); exit(-1); } - if (tot == 0) { - printf("No disks found in the system\n"); - exit(-1); - } - - - long history[32][8] = { 0 }; - - while(1) { - - /* allocate enough memory for all the structures */ - statp = calloc(tot, sizeof(perfstat_disk_t)); - - /* set name to first interface */ - strcpy(first.name, FIRST_DISK); - - /* ask to get all the structures available in one call */ - /* return code is number of structures returned */ - ret = perfstat_disk(&first, statp, sizeof(perfstat_disk_t), tot); - - /* check for error */ - if (ret <= 0) { - perror("perfstat_disk"); - exit(-1); - } // Obtain current time // `time()` returns the current time of the system as a `time_t` value time(&now); - /* print statistics for each of the disks */ - for (i = 0; i < ret; i++) { - + /* print statistics for each of the disks */ + for (i = 0; i < ret; i++) { + if(!startsWith(statp[i].name, "hdisk")) { continue; } - unsigned long bsize = statp[i].bsize; // Disk block size (in bytes). - unsigned long rblks = statp[i].rblks; // Number of blocks read from disk. - unsigned long wblks = statp[i].wblks; // Number of blocks written to disk. + unsigned long bsize = statp[i].bsize; // Disk block size (in bytes). + unsigned long rblks = statp[i].rblks; // Number of blocks read from disk. + unsigned long wblks = statp[i].wblks; // Number of blocks written to disk. - unsigned long rbytes = 0; - if(rblks > 0) { - rbytes = rblks * bsize; - } + unsigned long rbytes = 0; + if(rblks > 0) { + rbytes = rblks * bsize; + } - unsigned long wbytes = 0; - if (wblks > 0) { - wbytes = wblks * bsize; - } + unsigned long wbytes = 0; + if (wblks > 0) { + wbytes = wblks * bsize; + } - unsigned long drblbks = 0; - if (history[i][0] > 0) { - drblbks = rblks - history[i][0]; - } + unsigned long drblbks = 0; + if (history[i][0] > 0) { + drblbks = rblks - history[i][0]; + } - unsigned long drbytes = 0; - if(history[i][0] > 0) { - drbytes = rbytes - (history[i][0] * bsize); - } + unsigned long drbytes = 0; + if(history[i][0] > 0) { + drbytes = rbytes - (history[i][0] * bsize); + } - unsigned long dwblbks = 0; - if (history[i][1] > 0) { - dwblbks = wblks - history[i][1]; - } + unsigned long dwblbks = 0; + if (history[i][1] > 0) { + dwblbks = wblks - history[i][1]; + } - unsigned long dwbytes = 0; - if(history[i][1] > 0) { - dwbytes = wbytes - (history[i][1] * bsize); - } + unsigned long dwbytes = 0; + if(history[i][1] > 0) { + dwbytes = wbytes - (history[i][1] * bsize); + } - printf("%s - %s => reads: [ blocks: %10u (%8u ), bytes: %10u (%8u ) ], writes: [ blocks: %10u (%8u ), bytes: %10u (%8u ) ]\n", + printf("%s - %s => reads: [ blocks: %10u (%8u ), bytes: %10u (%8u ) ], writes: [ blocks: %10u (%8u ), bytes: %10u (%8u ) ]\n", strtok(ctime(&now), "\n"), statp[i].name, rblks, @@ -118,12 +132,11 @@ int main(int argc, char* argv[]) { wbytes, dwbytes); - history[i][0] = rblks; - history[i][1] = wblks; - } - - sleep(10); + history[i][0] = rblks; + history[i][1] = wblks; } + sleep(sleepSecs); + } }