Hi!
I have some issues with the CIFS performance I get out of my box. First, using iperf I get approx 95 Mbytes/s using a single stream, which I guess is quite OK. Standing in a folder in my ZFS volume, Testing
[root@freenas] /mnt/files/media/temp# dd if=/dev/zero of=test.img bs=1M count=2048
2048+0 records in
2048+0 records out
2147483648 bytes transferred in 5.179208 secs (414635526 bytes/sec)
(No compression)
Which is good as well.
However, when using CIFS from an Ubuntu 11.10 i get approx. 30 Mbyte/s. This is the very same computer as I ran iperf between, so I guess there's no networking issue.
AIO is on, sendfile is on and turning on large RW support slowed down the transfer about 5 Mbyte/s.
And yeah, the machine spec:
It's a VM in an ESXi machine.
The machine has en Xeon E3-1230 CPU, which is a quadcore @ 3.2 GHz.
The VM has 5 GB RAM dedicated as of now, and only one core dedicated to it (see this thread: http://forums.freenas.org/showthread.php?3425-Getting-lots-if-quot-Interrupt-storm-on-irq16-quot ).
What can I do/test to increase the performance?
Thanks,
Zyber
I have some issues with the CIFS performance I get out of my box. First, using iperf I get approx 95 Mbytes/s using a single stream, which I guess is quite OK. Standing in a folder in my ZFS volume, Testing
[root@freenas] /mnt/files/media/temp# dd if=/dev/zero of=test.img bs=1M count=2048
2048+0 records in
2048+0 records out
2147483648 bytes transferred in 5.179208 secs (414635526 bytes/sec)
(No compression)
Which is good as well.
However, when using CIFS from an Ubuntu 11.10 i get approx. 30 Mbyte/s. This is the very same computer as I ran iperf between, so I guess there's no networking issue.
AIO is on, sendfile is on and turning on large RW support slowed down the transfer about 5 Mbyte/s.
And yeah, the machine spec:
It's a VM in an ESXi machine.
The machine has en Xeon E3-1230 CPU, which is a quadcore @ 3.2 GHz.
The VM has 5 GB RAM dedicated as of now, and only one core dedicated to it (see this thread: http://forums.freenas.org/showthread.php?3425-Getting-lots-if-quot-Interrupt-storm-on-irq16-quot ).
What can I do/test to increase the performance?
Thanks,
Zyber