15%
05.03.2014
-s 12:00:00 -e 13:00:00
Linux 3.5.0-43-generic (hercules) 02.12.2013 _x86_64_ (2 CPU)
12:05:01 CPU %user %nice %system %iowait %steal %idle
12
15%
20.03.2014
jcb@hercules:# sar -u -f /var/log/sysstat/sa02 -s 12:00:00 -e 13:00:00
Linux 3.5.0-43-generic (hercules) 02.12.2013 _x86_64_ (2 CPU)
12:05:01 CPU %user %nice %system
15%
30.11.2025
friday 00:00-24:00
10 saturday 00:00-24:00
11 }
12
13 define timeperiod{
14 timeperiod_name wochentags
15 alias Robot Robot
14%
11.04.2016
wMB/s avgrq-sz ...
sdb 0.00 28.00 1.00 259.00 0.00 119.29 939.69 ...
Parallelism
Multiple computers can access enterprise storage, and multiple threads can access
14%
11.02.2016
wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sda 2.00 8.00 2.00 9500.00 16.00 151948.00 31.99 1.07 0.11 4.00 0.11 0.09 88.40
If your read or write
14%
17.12.2014
need a simple tool to help you understand what’s happening on the nodes.
... performance from many perspectives (i.e., CPU, network, disk). The tool is called nmon
.
Nmon Overview
Nmon is short for “Nigel’s Monitor” and is a command-line tool that presents performance information ... need a simple tool to help you understand what’s happening on the nodes.
14%
20.02.2012
.51, 0, 0.36, 17.74, 0.00, 6.38, 90, 0
2012-01-09 21:10:00, 92, 4.42, 0, 0.35, 20.81, 0.00, 7.22, 100, 0
2012-01-09 21:12
14%
30.11.2025
Commands = -f /var/log/collectl -r00:00,7 -m -F60 -s+YZCD --iosize
These options allow me to monitor CPU, disk, and network in brief mode and slab, processes, and disk in detailed mode. I also added the ability
14%
30.01.2020
: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=1401KiB/s][r=0,w=350 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=3104: Sat Oct 12 14:39:08 2019
write: IOPS=352, BW=1410KiB/s (1444kB/s)(82.8Mi
14%
07.10.2014
Sheepdog Server in Action
# ps -ef|egrep '([c]orosyn|[s]heep)'
root 491 1 0 13:04 ? 00:00:30 corosync
root 581 1 0 1:13 PM ? 00:00:03 sheep -p 7000 /var
