[gpfsug-discuss] cpu shielding

[Bryan Banister]

We do use cgroups to isolate user applications into a separate cgroup which provides some headroom of CPU and memory resources for the rest of the system services including GPFS and its required components such SSH, etc.
-B

-----Original Message-----
From: gpfsug-discuss-bounces at spectrumscale.org [mailto:gpfsug-discuss-bounces at spectrumscale.org] On Behalf Of Matt Weil
Sent: Wednesday, March 02, 2016 1:47 PM
To: gpfsug main discussion list
Subject: [gpfsug-discuss] cpu shielding

All,

We are seeing issues on our GPFS clients where mmfsd is not able to respond in time to renew its lease. Once that happens the file system is unmounted.  We are experimenting with c groups to tie mmfsd and others to specified cpu's.  Any recommendations out there on how to shield GPFS from other process?

Our system design has all PCI going through the first socket and that seems to be some contention there as the RAID controller with SSD's and nics are on that same bus.

Thanks

Matt


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