On 12/14/2015 07:11 AM, Jitendra Bhivare wrote:
From: Jitendra <jitendra.bhiv...@avagotech.com>
OS not responding when running 2 port traffic on 72 CPUs system.
be2iscsi IRQs gets affined to CPU0 when irqbalancer is disabled.
be_iopoll processing completions in BLOCK_IOPOLL_SOFTIRQ hogged CPU0.
1. Use budget to exit the polling loop in beiscsi_process_cq.
2. Rearming of EQ is done only after iopoll completes.
Signed-off-by: Jitendra <jitendra.bhiv...@avagotech.com>
---
drivers/scsi/be2iscsi/be_cmds.c | 2 +-
drivers/scsi/be2iscsi/be_iscsi.c | 2 +-
drivers/scsi/be2iscsi/be_main.c | 91 +++++++++++++++++++++-----------------
drivers/scsi/be2iscsi/be_main.h | 5 +-
4 files changed, 56 insertions(+), 44 deletions(-)
Hmm. Not sure if I agree with this.
Doesn't the be2iscsi driver set the cpu affinity internally?
If not, wouldn't that be the better solution?
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
h...@suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
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