[stgt] [PATCH] use pthread per target
ogerlitz at Voltaire.com
Tue Jun 1 07:06:05 CEST 2010
FUJITA Tomonori wrote:
> Not session (nexus) dedicated thread. The patch creates one pthread per target.
> I set up four targets. Each target has one logical unit (one SSD drive).
> I think that the patch would not improve the performance of one target
> having four logical units. Can't we tell people to use multiple
> targets if they want performance?
yes, people can follow this model of multiple targets. As I wrote before, as it can help
to outsmart per session bottlenecks / take advantage of parallelism in both sides.
> I thought about pthread per nexus, pthread per connection, etc. Any
> plan to improve the performance without adding hug lock complexity works for me.
indeed such an approach would add locking when going to the backing store in case a target
has multiple sessions, e.g multiple readers of the same lun.
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