[LU-1164] ko2iblnd schedulers

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.1.3
• Assignee: Liang Zhen (Inactive)
• Reporter: Sebastien Buisson (Inactive)

Description

Hi,

We believe that it could be a nice feature to be able control the number of kib scheduler threads launched by the ko2iblnd module.
Indeed, we can have some situations where the default threads number is not appropriate. In the current code it creates as many threads as the number of CPU cores, which means 32 or even 40 on our MESCA platform. We have noticed a performance penalty when running so many kib scheduler threads.

This is why I propose a patch that gives the ability to choose the number of kib scheduler threads. This is done via a ko2iblnd kernel module option. The default value remains unchanged.

Cheers,
Sebastien.

Issue Links

• Trackbacks: Changelog 2.1 Changes from version 2.1.2 to version 2.1.3 Server support for kernels: 2.6.18308.13.1.el5 (RHEL5) 2.6.32279.2.1.el6 (RHEL6) Client support for unpatched kernels: 2.6.18308.13.1.el5 (RHEL5) 2.6.32279.2.1....