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20%
Monitoring Performance with sar
05.03.2014
Home »  Articles  » 
 -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
20%
Collecting and evaluating performance data over a period of time
20.03.2014
Home »  Archive  »  2014  »  Issue 19: Perim...  » 
Lead Image © Sergey Nivens, 123RF.com
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
19%
Appendix – I/O Report from MPI Strace Analyzer
15.02.2012
Home »  HPC  »  Newsletter  »  2012-02-15 HPC...  » 
 
of Total Elapsed Time = 0.003117 seconds Average IO Time = 12.768351 seconds (0.378% of Total Time) Standard Deviation of IO Time = 9.919384 seconds Figure 1 below plots the total elpased time (yellow
19%
Appendix – I/O Report from MPI Strace Analyzer
26.01.2012
Home »  HPC  »  Newsletter  »  2012-02-01 HPC...  » 
 
of Total Elapsed Time = 0.003117 seconds Average IO Time = 12.768351 seconds (0.378% of Total Time) Standard Deviation of IO Time = 9.919384 seconds Figure 1 below plots the total elpased time (yellow
19%
Distributed storage with Sheepdog
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © kateleigh, 123RF.com
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
19%
Rex
19.02.2013
Home »  Articles  » 
Just as subjects must obey their king, all the computers and servers in an organization should follow the administrator’s commands. With Rex, you don’t even need to leave your admin throne. ... computers running the Linux distributions CentOS 5 and 6, Debian 5 and 6, Fedora, Gentoo, Mageia, openSUSE, RHEL 5 and 6, Scientific Linux, and Ubuntu 10.04, 11.04, and 12.04. Additionally, it can handle ... Just as subjects must obey their king, all the computers and servers in an organization should follow the administrator’s commands. With Rex, you don’t even need to leave your admin throne.
19%
Nmon: All-Purpose Admin Tool
17.12.2014
Home »  HPC  »  Articles  » 
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.
19%
News for Admins
26.03.2025
Home »  Archive  »  2025  »  Issue 86: Data...  » 
 
. Canonical Kubernetes 1.32 LTS is currently available and ready for production use. Read more at Canonical: https://canonical.com/blog/12-year-lts-for-kubernetes. Mirantis Releases Open Source k0rdent ... In the news: Palo Alto Networks Introduces Cortex Cloud; Canonical to Provide 12 Years of Kubernetes Support; Mirantis Releases Open Source k0rdent; D-Wave Now Offers On-Premises Quantum Computing
19%
Fundamentals of I/O benchmarking
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Kheng Ho Toh, 123RF.com
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
19%
Linux device mapper writecache
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © lightwise, 123R.com
: 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

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