Re: [vserver] hybrid zfs pools as iSCSI targets for vserver

From: Gordan Bobic <gordan_at_bobich.net>
Date: Sun 07 Aug 2011 - 01:33:53 BST
Message-ID: <4E3DDD71.7010106@bobich.net>

On 08/07/2011 01:09 AM, Herbert Poetzl wrote:

> assuming a TCP receive window of 64k (maximum) we end up
> with 750 kilobit per second at an optimal roundtrip time
> of 0.1 miliseconds, which means 93MB/s theoretical maximum
> for iSCSI over TCP/IP on gigabit ethernet.

This reminded me of something else - what tcp paramters are set in your
sysctl.conf? What is your TCP window size? Have you done any tuning on that?

Gordan
Received on Sun Aug 7 01:34:07 2011

[Next/Previous Months] [Main vserver Project Homepage] [Howto Subscribe/Unsubscribe] [Paul Sladen's vserver stuff]
Generated on Sun 07 Aug 2011 - 01:34:08 BST by hypermail 2.1.8