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seen Apr 14 at 15:37
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Jul
25
comment Weird behaviour case insensitivity with bash on MacOS
I haven't encountered a case insensitive shell environment before. Thanks for the help... I'm going to have to re-think some of my shell-scripts now :-(
Jul
25
accepted Weird behaviour case insensitivity with bash on MacOS
Jul
25
asked Weird behaviour case insensitivity with bash on MacOS
Jul
5
answered Date computations without GNU tools
Jun
27
revised Troubleshooting Bug: Soft Lockup
added 161 characters in body
Jun
27
accepted install 2.6.32.59 on squeeze
Jun
27
accepted Sudden burst in free memory
Jun
27
answered Sudden burst in free memory
Jun
22
awarded  Scholar
Jun
22
comment Tools for Monitoring Steal Time (st)
I wish I could set more than one answer as the accepted answer. Both answers have been very useful :-) Thank you!
Jun
22
accepted Tools for Monitoring Steal Time (st)
Jun
20
awarded  Commentator
Jun
20
comment Tools for Monitoring Steal Time (st)
The spec is right, but does it matter? dual core hyperthreading v. quad-core still show up as 4 CPUs. Should Xen only allocate us 2 CPUs?
Jun
20
comment Tools for Monitoring Steal Time (st)
I added some info about the cores above in the question. These bursts of st are short-lived, but they cause a big impact to our server.
Jun
20
revised Tools for Monitoring Steal Time (st)
added more info
Jun
20
comment Tools for Monitoring Steal Time (st)
still waiting for their support guys to get back to us. Supposedly the "virtual dedicated" concept was to give us a real metal server. It makes scaling, backup and a few other things easier. This is not the first support ticket regarding our load problems, so if this turns out to be the cause, I'll be rather... unhappy.
Jun
20
asked Tools for Monitoring Steal Time (st)
Jun
19
comment Sudden burst in free memory
Oh and no hint of the OOM killer.... lots of memory free.
Jun
19
comment Sudden burst in free memory
I suspect the load afterwards is a backlog of activity. Base load on the server is a steady 2-3% with a 5% average load. I recently brought that down from higher figures by removing spamd, changing awstats jobs etc. The server is a shared web host with pop3 and imap on Dovecot. It's overtaxed, but this kind of performance probelm and this kind of weird memory behaviour is abnormal, even for a server which is under steady load.
Jun
19
comment Sudden burst in free memory
The 'bunch' is the 1.6GB. It's odd. The Swap is 2GB, but mostly unused (50MB occasionally shows up in there). vmstat -SM 3 would be hard to run in a timely fashion. When the system experiences this, sometimes the terminal is unresponsive. Applications: They freeze, we occasionally get Bug: Soft Lockup in the syslog, and their load values get artifically inflated. Everything slowly comes back.