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100 lines
3.8 KiB
C
100 lines
3.8 KiB
C
/*
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htop - zfs/openzfs_sysctl.c
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(C) 2014 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "zfs/openzfs_sysctl.h"
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#include "zfs/ZfsArcStats.h"
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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static int MIB_kstat_zfs_misc_arcstats_size[5];
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static int MIB_kstat_zfs_misc_arcstats_c_max[5];
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static int MIB_kstat_zfs_misc_arcstats_mfu_size[5];
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static int MIB_kstat_zfs_misc_arcstats_mru_size[5];
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static int MIB_kstat_zfs_misc_arcstats_anon_size[5];
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static int MIB_kstat_zfs_misc_arcstats_hdr_size[5];
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static int MIB_kstat_zfs_misc_arcstats_other_size[5];
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static int MIB_kstat_zfs_misc_arcstats_compressed_size[5];
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static int MIB_kstat_zfs_misc_arcstats_uncompressed_size[5];
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/*{
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#include "zfs/ZfsArcStats.h"
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}*/
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void openzfs_sysctl_init(ZfsArcStats *stats) {
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size_t len;
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unsigned long long int arcSize;
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len = sizeof(arcSize);
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if (sysctlbyname("kstat.zfs.misc.arcstats.size", &arcSize, &len,
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NULL, 0) == 0 && arcSize != 0) {
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stats->enabled = 1;
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len = 5; sysctlnametomib("kstat.zfs.misc.arcstats.size", MIB_kstat_zfs_misc_arcstats_size, &len);
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sysctlnametomib("kstat.zfs.misc.arcstats.c_max", MIB_kstat_zfs_misc_arcstats_c_max, &len);
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sysctlnametomib("kstat.zfs.misc.arcstats.mfu_size", MIB_kstat_zfs_misc_arcstats_mfu_size, &len);
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sysctlnametomib("kstat.zfs.misc.arcstats.mru_size", MIB_kstat_zfs_misc_arcstats_mru_size, &len);
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sysctlnametomib("kstat.zfs.misc.arcstats.anon_size", MIB_kstat_zfs_misc_arcstats_anon_size, &len);
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sysctlnametomib("kstat.zfs.misc.arcstats.hdr_size", MIB_kstat_zfs_misc_arcstats_hdr_size, &len);
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sysctlnametomib("kstat.zfs.misc.arcstats.other_size", MIB_kstat_zfs_misc_arcstats_other_size, &len);
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if (sysctlnametomib("kstat.zfs.misc.arcstats.compressed_size", MIB_kstat_zfs_misc_arcstats_compressed_size, &len) == 0) {
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stats->isCompressed = 1;
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sysctlnametomib("kstat.zfs.misc.arcstats.uncompressed_size", MIB_kstat_zfs_misc_arcstats_uncompressed_size, &len);
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} else {
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stats->isCompressed = 0;
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}
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} else {
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stats->enabled = 0;
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}
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}
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void openzfs_sysctl_updateArcStats(ZfsArcStats *stats) {
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size_t len;
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if (stats->enabled) {
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len = sizeof(stats->size);
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sysctl(MIB_kstat_zfs_misc_arcstats_size, 5, &(stats->size), &len , NULL, 0);
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stats->size /= 1024;
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len = sizeof(stats->max);
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sysctl(MIB_kstat_zfs_misc_arcstats_c_max, 5, &(stats->max), &len , NULL, 0);
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stats->max /= 1024;
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len = sizeof(stats->MFU);
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sysctl(MIB_kstat_zfs_misc_arcstats_mfu_size, 5, &(stats->MFU), &len , NULL, 0);
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stats->MFU /= 1024;
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len = sizeof(stats->MRU);
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sysctl(MIB_kstat_zfs_misc_arcstats_mru_size, 5, &(stats->MRU), &len , NULL, 0);
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stats->MRU /= 1024;
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len = sizeof(stats->anon);
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sysctl(MIB_kstat_zfs_misc_arcstats_anon_size, 5, &(stats->anon), &len , NULL, 0);
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stats->anon /= 1024;
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len = sizeof(stats->header);
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sysctl(MIB_kstat_zfs_misc_arcstats_hdr_size, 5, &(stats->header), &len , NULL, 0);
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stats->header /= 1024;
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len = sizeof(stats->other);
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sysctl(MIB_kstat_zfs_misc_arcstats_other_size, 5, &(stats->other), &len , NULL, 0);
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stats->other /= 1024;
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if (stats->isCompressed) {
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len = sizeof(stats->compressed);
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sysctl(MIB_kstat_zfs_misc_arcstats_compressed_size, 5, &(stats->compressed), &len , NULL, 0);
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stats->compressed /= 1024;
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len = sizeof(stats->uncompressed);
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sysctl(MIB_kstat_zfs_misc_arcstats_uncompressed_size, 5, &(stats->uncompressed), &len , NULL, 0);
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stats->uncompressed /= 1024;
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}
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}
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}
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