Hi Timh,
On 2010-09-03 09:56, Timh Bergström wrote:
<CUT>
so, while Im at it; is there any specific hardware I should look for
when building the HAProxy-machines? Currently Im looking at dual
quad-core xeon's (56xx) with high frequency, the fastest memory I can
find, fast system disks (SAS 15k) and Broadcom 10GbE nic's for
traffic. I will probably run Ubuntu Server 10.04 LTS (64-bit), I'll
compile the latest stable HAProxy 1.4x series and maybe look at
compiling a new kernel from the 2.6.35 tree (network optimization for
multicore cpu's,
see:http://www.linuxfordevices.com/c/a/News/Linux-2635-and-early-days-of-Linux/
and http://kernelnewbies.org/LinuxChanges).
With a properly choosed hardware RPS introduced in 2.6.35 is very often
not needed.
Serveral decent NICS like Broadcom Corporation NetXtreme II BCM5709
(bnx2 - 1G) or Broadcom Corporation NetXtreme II BCM57710/BCM57711
(bnx2x - 10G) support MSI-X with many vectors and flow based hardware
packed scheduling, so are able to take advantage of more CPUs. Please
note however that not all NICs driven by the bnx2 driver are able to do
it, for example BCM5708 supports only single interrupt. RPS is also
useful if you have more CPUs than you NIC is able to support natively.
Also, please make sure that if you are using bondig or vlan, your kernel
is recent enough to propagate multiqueue over these additional layers.
Best regards,
Krzysztof Olędzki
