We have a Debian virtual machine (hardware: Dual-core Xeon at 2.4Ghz, 4
GB RAM, 2 GB of which is dedicated to the Debian VM) that's been running
our Asterisk PBX for some time. Before Wheezy came out, it was doing
reasonably well at its job, but now that we've upgraded to Wheezy, it's
ridiculously slow, with load averages topping 15 on a regular basis.
Naturally, at this server load, doing anything tests one's patience.
Is this due to the new kernel, or the new version of Asterisk? The
Asterisk version went from 1.6 to 1.8, and I recall that 1.8 is more of
a resource hog than the previous version... however, we also have
another Debian server (running Squeeze) with Xeon processors (4 cores in
total, but the same generation of Xeons), and Asterisk 1.8 never uses
more than about 40% of *one* CPU.
I have few other clues as to what might be causing this problem,
although the PHP upgrade also seems to be causing other, unrelated
issues. Can anyone help me troubleshoot the problem better than I
already have?
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