[DRBD-user] 10Gb ethernet ?

Lee Christie Lee at titaninternet.co.uk
Thu Jun 19 22:15:34 CEST 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


As my last word on this since its probably of no interest to anyone,
using two threads I consistently get 8.9Gb/s

The iperf docs suggest that if you get better performance with two
threads something is wrong somewhere but I'll just accept we're dealing
with quite fast networking here and there's bound to be some kernel
tuning which could "fix" this oddity. 

> -----Original Message-----
> From: drbd-user-bounces at lists.linbit.com 
> [mailto:drbd-user-bounces at lists.linbit.com] On Behalf Of Lee Christie
> Sent: 19 June 2008 21:06
> To: Igor Neves
> Cc: drbd-user at lists.linbit.com
> Subject: RE: [DRBD-user] 10Gb ethernet ?
> 
> Shouldn't really reply to myself, sign of insanity, but anyhow.....
> 
> downloaded the right version from sourceforge, this works...... ;)
> 
> [  4] local 10.1.0.1 port 5001 connected with 10.1.0.2 port 39067
> [ ID] Interval       Transfer     Bandwidth
> [  4]  0.0-10.0 sec  7.92 GBytes  6.80 Gbits/sec
> [  5] local 10.1.0.1 port 5001 connected with 10.1.0.2 port 46245
> [ ID] Interval       Transfer     Bandwidth
> [  5]  0.0-10.0 sec  8.86 GBytes  7.61 Gbits/sec
> [  4] local 10.1.0.1 port 5001 connected with 10.1.0.2 port 46246
> [ ID] Interval       Transfer     Bandwidth
> [  4]  0.0-10.0 sec  7.87 GBytes  6.76 Gbits/sec
> 
> not too shabby I guess. Bandwidth beyond what the disks can 
> do anyhow. 
> 
> > -----Original Message-----
> > > Do you have tested both nodes with iperf?
> > 
> > 
> > Hi Igor
> > 
> > I'd love to test with iperf but it seems to do nothing for me.
> 
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