Closed dontrebootme closed 9 years ago
The split on fields ends up with a padded empty string when stage = :cpu. To avoid getting the wrong metrics (see below), I'm shifting the fields before we create the hash.
stage = :cpu
Here is an example output from iostat -x 5 2:
iostat -x 5 2
me@myhost:~$ iostat -x 5 2 Linux 3.13.0-53-generic (myhost) 10/14/2015 _x86_64_ (4 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 28.21 0.00 19.59 0.04 12.46 39.70 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 0.04 9.82 0.06 3.69 0.82 59.16 32.04 0.06 15.32 4.38 15.49 1.40 0.52 avg-cpu: %user %nice %system %iowait %steal %idle 14.95 0.00 24.33 0.10 14.95 45.67 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 0.00 12.18 0.00 10.98
Before (note the initial 0.0 and every metric is shifted one):
myhost.iostat.avg-cpu.pct_user 0.0 1444847382 myhost.iostat.avg-cpu.pct_nice 13.12 1444847382 myhost.iostat.avg-cpu.pct_system 0.0 1444847382 myhost.iostat.avg-cpu.pct_iowait 20.9 1444847382 myhost.iostat.avg-cpu.pct_steal 0.0 1444847382 myhost.iostat.avg-cpu.pct_idle 14.09 1444847382
After (note the shift, and now we have valid stats)
myhost.iostat.avg-cpu.pct_user 13.67 1444847459 myhost.iostat.avg-cpu.pct_nice 0.0 1444847459 myhost.iostat.avg-cpu.pct_system 23.62 1444847459 myhost.iostat.avg-cpu.pct_iowait 0.0 1444847459 myhost.iostat.avg-cpu.pct_steal 14.51 1444847459 myhost.iostat.avg-cpu.pct_idle 48.2 1444847459
The split on fields ends up with a padded empty string when
stage = :cpu. To avoid getting the wrong metrics (see below), I'm shifting the fields before we create the hash.Here is an example output from
iostat -x 5 2:Before (note the initial 0.0 and every metric is shifted one):
After (note the shift, and now we have valid stats)