Here is my patch for munin diskstats:
diff -u diskstats-dist diskstats
--- diskstats-dist 2018-09-29 16:28:39.933727540 -0700
+++ diskstats 2018-11-12 09:54:56.850815309 -0800
@@ -234,6 +234,9 @@
# a given second, the device is nearly 100% saturated.
my $utilization = $tot_ticks / $interval;
+ # NVME drives tend to show nearly 100% util, so lets use r+w as an
alternate
+ my $rw_util = ($rd_ticks + $wr_ticks) / $interval;
+
# Average time an I/O takes on the block device
my $servicetime_in_sec =
$total_ios_per_sec ? $utilization / $total_ios_per_sec / 1000 : 0;
@@ -253,9 +256,11 @@
: 0;
my $util_print = $utilization / 10;
+ my $rw_util_print = $rw_util / 10;
return {
utilization => $util_print,
+ rw_util => $rw_util_print,
servicetime => $servicetime_in_sec,
average_wait => $average_wait_in_sec,
average_rd_wait => $average_rd_wait_in_sec,
@@ -298,6 +303,8 @@
print "${graph_id}_util.value "
. $result->{$device}->{'utilization'} . "\n";
+ print "${graph_id}_rw_util.value "
+ . $result->{$device}->{'rw_util'} . "\n";
}
print "\nmultigraph ${plugin_name}_throughput\n";
@@ -342,6 +349,7 @@
multigraph ${plugin_name}_utilization.$graph_id
util.value $result->{'utilization'}
+rw_util.value $result->{'rw_util'}
EOF
}
@@ -784,6 +792,11 @@
${graph_id}_util.info Utilization of the device
${graph_id}_util.min 0
${graph_id}_util.draw LINE1
+${graph_id}_rw_util.label $cur_diskstats{$device}->{'pretty_device_name'}
+${graph_id}_rw_util.type GAUGE
+${graph_id}_rw_util.info Read/write utilization of the device
+${graph_id}_rw_util.min 0
+${graph_id}_rw_util.draw LINE1
EOF
}
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https://bugs.launchpad.net/bugs/1790181
Title:
/proc/diskstats shows weird values
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