Re: Read performances 1/100th of writes.

2010-09-06 Thread Daniel Cordey
On Sep 3, 8:44 pm, Mike Christie wrote: > Did you do a echo 1 > /sys/module/iscsi_tcp/paramters/debug_iscsi_tcp No... good idea ! > Could you try taking a tcpdump or wireshark trace during the poor perf test? Yes, I will. However, I'm currently re-installing the server with a Debian testing

Re: Read performances 1/100th of writes.

2010-09-08 Thread Daniel Cordey
After updating the Ubuntu Server from 9.10 to 10.04, I lost syslogd (why is Canonical breaking things like this...?) and experienced many other annoying glitches. Enough of Ubuntu Server... I reinstalled a Debian 'testing', reconfigured everything from scratch and connected the target with a cross

Re: Read performances 1/100th of writes.

2010-09-08 Thread Daniel Cordey
> On Sep 3, 8:44 pm, Mike Christie wrote: > > > Did you do a echo 1 > /sys/module/iscsi_tcp/paramters/debug_iscsi_tcp The initial problem was probably related to ARP flux etc. I've tried various settings but was a bit too complex in our ever changing environment. Therefore, I decided to use a se

Re: Read performances 1/100th of writes.

2010-09-13 Thread Daniel Cordey
On Sep 9, 7:43 pm, Mike Christie wrote: > Do you mean with something like netperf you get 98 Mbps? Did you mean 98 > megabytes or megabits? 98 megabits/s would only get you around 12 MB > (megabytes) of throughput right? Boy, I'm so stupid... This should have hit my face since day one ! I was