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|
--- zfs-stats.orig 2020-12-17 11:05:01 UTC
+++ zfs-stats
@@ -1,4 +1,4 @@
-#!/usr/local/bin/perl
+#!/usr/bin/env -iS perl
#
# $Id$
#
@@ -46,7 +46,7 @@ use warnings;
use Getopt::Long;
Getopt::Long::Configure ("bundling");
-my $version = '1.3.0';
+my $version = '1.3.0_2';
my $usetunable = 1; # Change to 0 to disable sysctl MIB spill.
my $show_sysctl_descriptions = 0; # Change to 1 (or use the -d flag) to show sysctl descriptions.
@@ -98,6 +98,7 @@ Usage: $0 [-ABDHLMSabdhus]
-E : ARC efficiency
-D : VDEV cache statistics
-L : L2 ARC statistics
+-O : dataset operations statistics
-Z : DMU (zfetch) statistics
-R : display raw numbers and bytes
@@ -201,6 +202,14 @@ sub fPerc {
} else { return sprintf('%0.' . $Decimal . 'f', 100) . "%"; }
}
+sub fRatio {
+ my $lVal = $_[0] // 0;
+ my $rVal = $_[1] // 1;
+ my $Decimal = $_[2] // 2;
+
+ return sprintf('%0.' . $Decimal . 'f', ($lVal / $rVal));
+}
+
my @Kstats = qw(
hw.machine
hw.machine_arch
@@ -215,12 +224,28 @@ my @Kstats = qw(
vm.kmem_size_min
vm.kmem_size_scale
vm.stats
- kstat.zfs
+ kstat.zfs.misc.abdstats
+ kstat.zfs.misc.arcstats
+ kstat.zfs.misc.dbufstats
+ kstat.zfs.misc.dmu_tx
+ kstat.zfs.misc.dnodestats
+ kstat.zfs.misc.fletcher_4_bench
+ kstat.zfs.misc.fm
+ kstat.zfs.misc.vdev_cache_stats
+ kstat.zfs.misc.vdev_mirror_stats
+ kstat.zfs.misc.vdev_raidz_bench
+ kstat.zfs.misc.xuio_stats
+ kstat.zfs.misc.zfetchstats
+ kstat.zfs.misc.zil
+ kstat.zfs.misc.zstd
vfs.zfs
);
+my $IsOpenZFS = 1;
+
sub _start {
my $daydate = localtime; chomp $daydate;
+ $IsOpenZFS = defined($Kstat->{"vfs.zfs.vdev.cache_size"});
div1;
printf("ZFS Subsystem Report\t\t\t\t%s", $daydate);
div2;
@@ -330,17 +355,16 @@ sub _arc_summary {
my $deleted = $Kstat->{"kstat.zfs.misc.arcstats.deleted"};
my $evict_skip = $Kstat->{"kstat.zfs.misc.arcstats.evict_skip"};
my $mutex_miss = $Kstat->{"kstat.zfs.misc.arcstats.mutex_miss"};
- my $recycle_miss = $Kstat->{"kstat.zfs.misc.arcstats.recycle_miss"};
print "ARC Misc:\n";
printf("\tDeleted:\t\t\t\t%s\n", fHits($deleted));
- printf("\tRecycle Misses:\t\t\t\t%s\n", fHits($recycle_miss));
printf("\tMutex Misses:\t\t\t\t%s\n", fHits($mutex_miss));
printf("\tEvict Skips:\t\t\t\t%s\n", fHits($evict_skip));
print "\n";
### ARC Sizing ###
my $arc_size = $Kstat->{"kstat.zfs.misc.arcstats.size"};
+ my $arc_uncompressed_size = $Kstat->{"kstat.zfs.misc.arcstats.uncompressed_size"};
my $mru_size = $Kstat->{"kstat.zfs.misc.arcstats.p"};
my $target_max_size = $Kstat->{"kstat.zfs.misc.arcstats.c_max"};
my $target_min_size = $Kstat->{"kstat.zfs.misc.arcstats.c_min"};
@@ -356,7 +380,12 @@ sub _arc_summary {
fPerc($target_min_size, $target_max_size), fBytes($target_min_size));
printf("\tMax Size (High Water):\t\t%d:1\t%s\n",
$target_size_ratio, fBytes($target_max_size));
+ printf("\tDecompressed Data Size:\t\t\t%s\n",
+ fBytes($arc_uncompressed_size));
+ printf("\tCompression Factor:\t\t\t%s\n",
+ fRatio($arc_uncompressed_size, $arc_size));
+
print "\nARC Size Breakdown:\n";
if ($arc_size > $target_size) {
my $mfu_size = ($arc_size - $mru_size);
@@ -424,7 +453,7 @@ sub _arc_efficiency {
printf("\tData Demand Efficiency:\t\t%s\t%s\n",
fPerc($demand_data_hits, $demand_data_total), fHits($demand_data_total));
- if ($prefetch_data_total > 0){
+ if ($prefetch_data_total > 0){
printf("\tData Prefetch Efficiency:\t%s\t%s\n",
fPerc($prefetch_data_hits, $prefetch_data_total), fHits($prefetch_data_total));
}
@@ -474,6 +503,7 @@ sub _l2arc_summary {
return;
}
+ my $l2_asize = $Kstat->{"kstat.zfs.misc.arcstats.l2_asize"};
my $l2_abort_lowmem = $Kstat->{"kstat.zfs.misc.arcstats.l2_abort_lowmem"};
my $l2_cksum_bad = $Kstat->{"kstat.zfs.misc.arcstats.l2_cksum_bad"};
my $l2_evict_lock_retry = $Kstat->{"kstat.zfs.misc.arcstats.l2_evict_lock_retry"};
@@ -493,14 +523,13 @@ sub _l2arc_summary {
my $l2_write_full = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_full"};
my $l2_write_in_l2 = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_in_l2"};
my $l2_write_io_in_progress = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_io_in_progress"};
- my $l2_write_not_cacheable = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_not_cacheable"};
+ #my $l2_write_not_cacheable = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_not_cacheable"};
my $l2_write_passed_headroom = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_passed_headroom"};
- my $l2_write_pios = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_pios"};
+ #my $l2_write_pios = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_pios"};
my $l2_write_spa_mismatch = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_spa_mismatch"};
my $l2_write_trylock_fail = $Kstat->{"kstat.zfs.misc.arcstats.l2_write_trylock_fail"};
my $l2_writes_done = $Kstat->{"kstat.zfs.misc.arcstats.l2_writes_done"};
my $l2_writes_error = $Kstat->{"kstat.zfs.misc.arcstats.l2_writes_error"};
- my $l2_writes_hdr_miss = $Kstat->{"kstat.zfs.misc.arcstats.l2_writes_hdr_miss"};
my $l2_writes_sent = $Kstat->{"kstat.zfs.misc.arcstats.l2_writes_sent"};
my $l2_access_total = ($l2_hits + $l2_misses);
@@ -510,19 +539,28 @@ sub _l2arc_summary {
if ($l2_health_count > 0) {
print "(DEGRADED)\n";
} else { print "(HEALTHY)\n"; }
- printf("\tPassed Headroom:\t\t\t%s\n", fHits($l2_write_passed_headroom));
- printf("\tTried Lock Failures:\t\t\t%s\n", fHits($l2_write_trylock_fail));
- printf("\tIO In Progress:\t\t\t\t%s\n", fHits($l2_write_io_in_progress));
+
+ if (not $IsOpenZFS) {
+ printf("\tPassed Headroom:\t\t\t%s\n", fHits($l2_write_passed_headroom));
+ printf("\tTried Lock Failures:\t\t\t%s\n", fHits($l2_write_trylock_fail));
+ printf("\tIO In Progress:\t\t\t\t%s\n", fHits($l2_write_io_in_progress));
+ }
printf("\tLow Memory Aborts:\t\t\t%s\n", fHits($l2_abort_lowmem));
printf("\tFree on Write:\t\t\t\t%s\n", fHits($l2_free_on_write));
- printf("\tWrites While Full:\t\t\t%s\n", fHits($l2_write_full));
+ if (not $IsOpenZFS) {
+ printf("\tWrites While Full:\t\t\t%s\n", fHits($l2_write_full));
+ }
printf("\tR/W Clashes:\t\t\t\t%s\n", fHits($l2_rw_clash));
printf("\tBad Checksums:\t\t\t\t%s\n", fHits($l2_cksum_bad));
printf("\tIO Errors:\t\t\t\t%s\n", fHits($l2_io_error));
- printf("\tSPA Mismatch:\t\t\t\t%s\n", fHits($l2_write_spa_mismatch));
+ if (not $IsOpenZFS) {
+ printf("\tSPA Mismatch:\t\t\t\t%s\n", fHits($l2_write_spa_mismatch));
+ }
print "\n";
- printf("L2 ARC Size: (Adaptive)\t\t\t\t%s\n", fBytes($l2_size));
+ printf("L2 ARC Size: (Adaptive)\t\t\t\t%s\n", fBytes($l2_asize));
+ printf("\tDecompressed Data Size:\t\t\t%s\n", fBytes($l2_size));
+ printf("\tCompression Factor:\t\t\t%s\n", fRatio($l2_size, $l2_asize));
printf("\tHeader Size:\t\t\t%s\t%s\n",
fPerc($l2_hdr_size, $l2_size), fBytes($l2_hdr_size));
print "\n";
@@ -541,12 +579,14 @@ sub _l2arc_summary {
printf("\tFeeds:\t\t\t\t\t%s\n", fHits($l2_feeds));
print "\n";
- print "L2 ARC Buffer:\n";
- printf("\tBytes Scanned:\t\t\t\t%s\n", fBytes($l2_write_buffer_bytes_scanned));
- printf("\tBuffer Iterations:\t\t\t%s\n", fHits($l2_write_buffer_iter));
- printf("\tList Iterations:\t\t\t%s\n", fHits($l2_write_buffer_list_iter));
- printf("\tNULL List Iterations:\t\t\t%s\n", fHits($l2_write_buffer_list_null_iter));
- print "\n";
+ if (not $IsOpenZFS) {
+ print "L2 ARC Buffer:\n";
+ printf("\tBytes Scanned:\t\t\t\t%s\n", fBytes($l2_write_buffer_bytes_scanned));
+ printf("\tBuffer Iterations:\t\t\t%s\n", fHits($l2_write_buffer_iter));
+ printf("\tList Iterations:\t\t\t%s\n", fHits($l2_write_buffer_list_iter));
+ printf("\tNULL List Iterations:\t\t\t%s\n", fHits($l2_write_buffer_list_null_iter));
+ print "\n";
+ }
print "L2 ARC Writes:\n";
if ($l2_writes_done != $l2_writes_sent) {
@@ -582,7 +622,7 @@ sub _vdev_summary {
my $vdev_cache_hits = $Kstat->{"kstat.zfs.misc.vdev_cache_stats.hits"};
my $vdev_cache_total = ($vdev_cache_misses + $vdev_cache_hits + $vdev_cache_delegations);
- if ($Kstat->{"vfs.zfs.vdev.cache.size"} == 0) {
+ if (($IsOpenZFS ? $Kstat->{"vfs.zfs.vdev.cache_size"} : $Kstat->{"vfs.zfs.vdev.cache.size"}) == 0) {
printf "VDEV cache is disabled\n";
} elsif ($vdev_cache_total > 0) {
printf("VDEV Cache Summary:\t\t\t\t%s\n", fHits($vdev_cache_total));
@@ -595,6 +635,57 @@ sub _vdev_summary {
}
}
+sub _dataset_summary {
+ if ($IsOpenZFS) {
+ my @poolnames = run('zpool', 'list', '-H', '-oname');
+ foreach my $poolname (@poolnames) {
+ chomp($poolname);
+ my @Kstat_pull = run( 'sysctl_q', "kstat.zfs.$poolname.dataset" );
+ my %objset;
+ foreach my $kstat (@Kstat_pull) {
+ chomp $kstat;
+ if ($kstat =~ m/^([^:]+):\s+(.+)\s*$/s) {
+ $Kstat->{$1} = $2;
+ my @fields = split(/\./, $1);
+ if ($fields[5] eq "dataset_name") {
+ my $dataset = $2;
+ $objset{$dataset} = $fields[4];
+ }
+ }
+ }
+ foreach my $dataset (sort(keys(%objset))) {
+ my $objset = $objset{$dataset};
+ my $pfx = "kstat.zfs.$poolname.dataset.$objset";
+ my $dataset_reads = $Kstat->{"$pfx.reads"};
+ my $dataset_nread = $Kstat->{"$pfx.nread"};
+ my $dataset_writes = $Kstat->{"$pfx.writes"};
+ my $dataset_nwritten = $Kstat->{"$pfx.nwritten"};
+ my $dataset_nunlinks = $Kstat->{"$pfx.nunlinks"};
+ my $dataset_ops = $dataset_reads + $dataset_writes + $dataset_nunlinks;
+ my $dataset_amount = $dataset_nread + $dataset_nwritten;
+ if ($dataset_ops > 0) {
+ printf("Dataset statistics for:\t%s\n\n", $dataset);
+ printf("\tReads:\t\t%s\t%s\n",
+ fPerc($dataset_reads, $dataset_ops), fHits($dataset_reads));
+ printf("\tWrites:\t\t%s\t%s\n",
+ fPerc($dataset_writes, $dataset_ops), fHits($dataset_writes));
+ printf("\tUnlinks:\t%s\t%s\n",
+ fPerc($dataset_nunlinks, $dataset_ops), fHits($dataset_nunlinks));
+ printf("\n");
+ printf("\tBytes read:\t%s\t%s\n",
+ fPerc($dataset_nread, $dataset_amount), fHits($dataset_nread));
+ printf("\tBytes written:\t%s\t%s\n",
+ fPerc($dataset_nwritten, $dataset_amount), fHits($dataset_nwritten));
+ printf("\n");
+ }
+ }
+
+ }
+ } else {
+ printf "Per dataset statistics are not available\n";
+ }
+}
+
sub _sysctl_summary {
return unless $usetunable;
my @Tunable = qw(
@@ -633,6 +724,7 @@ my @unSub = map { $_, \&div2 }(
\&_arc_summary,
\&_arc_efficiency,
\&_l2arc_summary,
+ \&_dataset_summary,
\&_dmu_summary,
\&_vdev_summary,
\&_sysctl_summary,
@@ -640,7 +732,7 @@ my @unSub = map { $_, \&div2 }(
my %opt;
GetOptions( \%opt,
- qw"A D E I|F L M R|B Z a d t u s",
+ qw"A D E I|F L M O R|B Z a d t u s",
h => \&_usage, # exits
V => \&_version, # exits
qw"hostname=s user=s id_file=s port=s",
@@ -676,6 +768,7 @@ if ($opt{a}) {
if ($opt{A}) { push @out, \&_arc_summary, \&div2 }
if ($opt{E}) { push @out, \&_arc_efficiency, \&div2 }
if ($opt{L}) { push @out, \&_l2arc_summary, \&div2 }
+ if ($opt{O}) { push @out, \&_dataset_summary, \&div2 }
if ($opt{Z}) { push @out, \&_dmu_summary, \&div2 }
if ($opt{D}) { push @out, \&_vdev_summary, \&div2 }
if ($opt{s}) { push @out, \&_sysctl_summary, \&div2 }
|
