<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><br></div><div>Hi Mark, monitor i/o wait when this goes on, see if it spikes.You can see that from top as 'wa'. I wonder if you have a disk issue.<br><br>-Simon</div><div><br>On May 25, 2013, at 11:59 AM, Mark Phillips <<a href="mailto:mark@phillipsmarketing.biz">mark@phillipsmarketing.biz</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr"><div>I have an old headless server running Linux version 2.6.32-5-686 (Debian 2.6.32-48squeeze1) (<a href="mailto:dannf@debian.org">dannf@debian.org</a>) (gcc version 4.3.5 (Debian 4.3.5-4) ). Recently, when I log in using ssh the terminal window freezes for a few seconds, then usually comes back. The command line stops printing the characters I am typing, the cursor stops blinking, and then after a few seconds, it comes back. This happens every few minutes, so it is becoming rather annoying.<br>
<br></div><div>When I check the disks, I get<br># df -h<br>Filesystem Size Used Avail Use% Mounted on<br>/dev/sda1 182G 42G 131G 25% /<br>tmpfs 505M 0 505M 0% /lib/init/rw<br>
udev 500M 140K 500M 1% /dev<br>tmpfs 505M 0 505M 0% /dev/shm<br>/dev/sdb1 230G 146G 72G 67% /mnt/sdb<br><br></div><div>So I am not running out of disk space. <br>
<br></div><div>When I run top, I get this output:<br>Tasks: 90 total, 3 running, 87 sleeping, 0 stopped, 0 zombie<br>Cpu(s): 7.0%us, 3.0%sy, 0.0%ni, 82.7%id, 6.6%wa, 0.3%hi, 0.3%si, 0.0%st<br>Mem: 1032748k total, 1013748k used, 19000k free, 242992k buffers<br>
Swap: 2017272k total, 1040k used, 2016232k free, 473584k cached<br><br></div><div>So I am not running a process that is taking over the CPU.<br><br></div><div>How should I go about diagnosing this problem?<br><br>
</div><div>Thanks!<br><br></div><div>Mark <br></div></div>
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