Kurt Yoder wrote:

I upped the memory on the VM to 1 GB and ran the same test. It actually got *slower*:

m...@guest:~$ free
             total       used       free     shared    buffers     cached
Mem:       1024224     131324     892900          0       1816      18328
-/+ buffers/cache:     111180     913044
Swap:       488248          0     488248
m...@guest:~$ sudo -s
m...@guest:~# dd if=/dev/zero of=/bigfile count=100000
100000+0 records in
100000+0 records out
51200000 bytes (51 MB) copied, 22.2141 s, 2.3 MB/s



Wierd.  Can you change the disk interface to ide to rule out virtio issues?

(though dd should be running entirely in cache)

Is your disk a raw volume or qcow file?

--
error compiling committee.c: too many arguments to function

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