Add per dataset operations statistics provided by OpenZFS
This commit is contained in:
Stefan Eßer
parent
1929dd9dc4
commit
c141e515d0
Notes:
svn2git
2021-03-31 03:12:20 +00:00
svn path=/head/; revision=558283
@ -1,4 +1,4 @@
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--- zfs-stats.orig 2020-10-07 13:06:33 UTC
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--- zfs-stats.orig 2020-12-17 11:05:01 UTC
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+++ zfs-stats
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@@ -1,4 +1,4 @@
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-#!/usr/local/bin/perl
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@ -11,11 +11,19 @@
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Getopt::Long::Configure ("bundling");
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-my $version = '1.3.0';
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+my $version = '1.3.0_1';
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+my $version = '1.3.0_2';
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my $usetunable = 1; # Change to 0 to disable sysctl MIB spill.
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my $show_sysctl_descriptions = 0; # Change to 1 (or use the -d flag) to show sysctl descriptions.
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@@ -201,6 +201,14 @@ sub fPerc {
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@@ -98,6 +98,7 @@ Usage: $0 [-ABDHLMSabdhus]
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-E : ARC efficiency
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-D : VDEV cache statistics
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-L : L2 ARC statistics
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+-O : dataset operations statistics
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-Z : DMU (zfetch) statistics
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-R : display raw numbers and bytes
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@@ -201,6 +202,14 @@ sub fPerc {
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} else { return sprintf('%0.' . $Decimal . 'f', 100) . "%"; }
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}
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@ -30,7 +38,7 @@
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my @Kstats = qw(
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hw.machine
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hw.machine_arch
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@@ -215,12 +223,28 @@ my @Kstats = qw(
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@@ -215,12 +224,28 @@ my @Kstats = qw(
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vm.kmem_size_min
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vm.kmem_size_scale
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vm.stats
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@ -60,7 +68,7 @@
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div1;
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printf("ZFS Subsystem Report\t\t\t\t%s", $daydate);
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div2;
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@@ -330,17 +354,16 @@ sub _arc_summary {
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@@ -330,17 +355,16 @@ sub _arc_summary {
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my $deleted = $Kstat->{"kstat.zfs.misc.arcstats.deleted"};
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my $evict_skip = $Kstat->{"kstat.zfs.misc.arcstats.evict_skip"};
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my $mutex_miss = $Kstat->{"kstat.zfs.misc.arcstats.mutex_miss"};
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@ -79,7 +87,7 @@
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my $mru_size = $Kstat->{"kstat.zfs.misc.arcstats.p"};
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my $target_max_size = $Kstat->{"kstat.zfs.misc.arcstats.c_max"};
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my $target_min_size = $Kstat->{"kstat.zfs.misc.arcstats.c_min"};
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@@ -356,7 +379,12 @@ sub _arc_summary {
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@@ -356,7 +380,12 @@ sub _arc_summary {
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fPerc($target_min_size, $target_max_size), fBytes($target_min_size));
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printf("\tMax Size (High Water):\t\t%d:1\t%s\n",
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$target_size_ratio, fBytes($target_max_size));
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@ -92,7 +100,7 @@
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print "\nARC Size Breakdown:\n";
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if ($arc_size > $target_size) {
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my $mfu_size = ($arc_size - $mru_size);
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@@ -424,7 +452,7 @@ sub _arc_efficiency {
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@@ -424,7 +453,7 @@ sub _arc_efficiency {
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printf("\tData Demand Efficiency:\t\t%s\t%s\n",
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fPerc($demand_data_hits, $demand_data_total), fHits($demand_data_total));
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@ -101,7 +109,7 @@
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printf("\tData Prefetch Efficiency:\t%s\t%s\n",
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fPerc($prefetch_data_hits, $prefetch_data_total), fHits($prefetch_data_total));
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}
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@@ -474,6 +502,7 @@ sub _l2arc_summary {
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@@ -474,6 +503,7 @@ sub _l2arc_summary {
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return;
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}
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@ -109,7 +117,7 @@
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my $l2_abort_lowmem = $Kstat->{"kstat.zfs.misc.arcstats.l2_abort_lowmem"};
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my $l2_cksum_bad = $Kstat->{"kstat.zfs.misc.arcstats.l2_cksum_bad"};
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my $l2_evict_lock_retry = $Kstat->{"kstat.zfs.misc.arcstats.l2_evict_lock_retry"};
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@@ -493,14 +522,13 @@ sub _l2arc_summary {
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@@ -493,14 +523,13 @@ sub _l2arc_summary {
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my $l2_write_full = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_full"};
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my $l2_write_in_l2 = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_in_l2"};
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my $l2_write_io_in_progress = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_io_in_progress"};
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@ -126,7 +134,7 @@
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my $l2_writes_sent = $Kstat->{"kstat.zfs.misc.arcstats.l2_writes_sent"};
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my $l2_access_total = ($l2_hits + $l2_misses);
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@@ -510,19 +538,28 @@ sub _l2arc_summary {
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@@ -510,19 +539,28 @@ sub _l2arc_summary {
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if ($l2_health_count > 0) {
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print "(DEGRADED)\n";
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} else { print "(HEALTHY)\n"; }
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@ -161,7 +169,7 @@
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printf("\tHeader Size:\t\t\t%s\t%s\n",
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fPerc($l2_hdr_size, $l2_size), fBytes($l2_hdr_size));
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print "\n";
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@@ -541,12 +578,14 @@ sub _l2arc_summary {
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@@ -541,12 +579,14 @@ sub _l2arc_summary {
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printf("\tFeeds:\t\t\t\t\t%s\n", fHits($l2_feeds));
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print "\n";
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@ -182,7 +190,7 @@
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print "L2 ARC Writes:\n";
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if ($l2_writes_done != $l2_writes_sent) {
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@@ -582,7 +621,7 @@ sub _vdev_summary {
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@@ -582,7 +622,7 @@ sub _vdev_summary {
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my $vdev_cache_hits = $Kstat->{"kstat.zfs.misc.vdev_cache_stats.hits"};
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my $vdev_cache_total = ($vdev_cache_misses + $vdev_cache_hits + $vdev_cache_delegations);
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@ -191,3 +199,86 @@
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printf "VDEV cache is disabled\n";
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} elsif ($vdev_cache_total > 0) {
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printf("VDEV Cache Summary:\t\t\t\t%s\n", fHits($vdev_cache_total));
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@@ -595,6 +635,57 @@ sub _vdev_summary {
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}
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}
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+sub _dataset_summary {
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+ if ($IsOpenZFS) {
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+ my @poolnames = run('zpool', 'list', '-H', '-oname');
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+ foreach my $poolname (@poolnames) {
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+ chomp($poolname);
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+ my @Kstat_pull = run( 'sysctl_q', "kstat.zfs.$poolname.dataset" );
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+ my %objset;
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+ foreach my $kstat (@Kstat_pull) {
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+ chomp $kstat;
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+ if ($kstat =~ m/^([^:]+):\s+(.+)\s*$/s) {
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+ $Kstat->{$1} = $2;
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+ my @fields = split(/\./, $1);
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+ if ($fields[5] eq "dataset_name") {
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+ my $dataset = $2;
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+ $objset{$dataset} = $fields[4];
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+ }
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+ }
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+ }
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+ foreach my $dataset (sort(keys(%objset))) {
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+ my $objset = $objset{$dataset};
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+ my $pfx = "kstat.zfs.$poolname.dataset.$objset";
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+ my $dataset_reads = $Kstat->{"$pfx.reads"};
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+ my $dataset_nread = $Kstat->{"$pfx.nread"};
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+ my $dataset_writes = $Kstat->{"$pfx.writes"};
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+ my $dataset_nwritten = $Kstat->{"$pfx.nwritten"};
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+ my $dataset_nunlinks = $Kstat->{"$pfx.nunlinks"};
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+ my $dataset_ops = $dataset_reads + $dataset_writes + $dataset_nunlinks;
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+ my $dataset_amount = $dataset_nread + $dataset_nwritten;
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+ if ($dataset_ops > 0) {
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+ printf("Dataset statistics for:\t%s\n\n", $dataset);
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+ printf("\tReads:\t\t%s\t%s\n",
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+ fPerc($dataset_reads, $dataset_ops), fHits($dataset_reads));
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+ printf("\tWrites:\t\t%s\t%s\n",
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+ fPerc($dataset_writes, $dataset_ops), fHits($dataset_writes));
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+ printf("\tUnlinks:\t%s\t%s\n",
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+ fPerc($dataset_nunlinks, $dataset_ops), fHits($dataset_nunlinks));
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+ printf("\n");
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+ printf("\tBytes read:\t%s\t%s\n",
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+ fPerc($dataset_nread, $dataset_amount), fHits($dataset_nread));
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+ printf("\tBytes written:\t%s\t%s\n",
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+ fPerc($dataset_nwritten, $dataset_amount), fHits($dataset_nwritten));
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+ printf("\n");
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+ }
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+ }
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+
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+ }
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+ } else {
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+ printf "Per dataset statistics are not available\n";
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+ }
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+}
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+
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sub _sysctl_summary {
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return unless $usetunable;
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my @Tunable = qw(
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@@ -633,6 +724,7 @@ my @unSub = map { $_, \&div2 }(
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\&_arc_summary,
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\&_arc_efficiency,
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\&_l2arc_summary,
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+ \&_dataset_summary,
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\&_dmu_summary,
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\&_vdev_summary,
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\&_sysctl_summary,
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@@ -640,7 +732,7 @@ my @unSub = map { $_, \&div2 }(
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my %opt;
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GetOptions( \%opt,
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- qw"A D E I|F L M R|B Z a d t u s",
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+ qw"A D E I|F L M O R|B Z a d t u s",
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h => \&_usage, # exits
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V => \&_version, # exits
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qw"hostname=s user=s id_file=s port=s",
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@@ -676,6 +768,7 @@ if ($opt{a}) {
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if ($opt{A}) { push @out, \&_arc_summary, \&div2 }
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if ($opt{E}) { push @out, \&_arc_efficiency, \&div2 }
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if ($opt{L}) { push @out, \&_l2arc_summary, \&div2 }
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+ if ($opt{O}) { push @out, \&_dataset_summary, \&div2 }
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if ($opt{Z}) { push @out, \&_dmu_summary, \&div2 }
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if ($opt{D}) { push @out, \&_vdev_summary, \&div2 }
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if ($opt{s}) { push @out, \&_sysctl_summary, \&div2 }
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