From: hare@suse.de (Hannes Reinecke)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V2 3/3] scsi: mptxsas: offload IRQ execution
Date: Mon, 09 Nov 2015 08:15:40 +0100 [thread overview]
Message-ID: <5640481C.9000505@suse.de> (raw)
In-Reply-To: <1447034266-28003-4-git-send-email-okaya@codeaurora.org>
On 11/09/2015 02:57 AM, Sinan Kaya wrote:
> The mpt2sas and mpt3sas drivers are spinning forever in
> their IRQ handlers if there are a lot of jobs queued up
> by the PCIe card. This handler is causing spikes for
> the rest of the system and sluggish behavior.
>
> Marking all MSI interrupts as non-shared and moving the
> MSI interrupts to thread context. This relexes the rest
> of the system execution.
>
NACK.
If there is a scalability issue when handling interrupts
it should be fixed in the driver directly.
Looking at the driver is should be possible to implement
a worker thread handling the reply descriptor, and having the
interrupt only to fetch the reply descriptor.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare at suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 N?rnberg
GF: F. Imend?rffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG N?rnberg)
next prev parent reply other threads:[~2015-11-09 7:15 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-09 1:57 [PATCH V2 0/3] scsi: mptxsas: updates for ARM64 Sinan Kaya
2015-11-09 1:57 ` [PATCH V2 1/3] scsi: mptxsas: try 64 bit DMA when 32 bit DMA fails Sinan Kaya
2015-11-09 7:09 ` Hannes Reinecke
2015-11-09 8:59 ` Arnd Bergmann
2015-11-09 14:07 ` Sinan Kaya
2015-11-09 14:33 ` Arnd Bergmann
2015-11-09 23:22 ` Sinan Kaya
2015-11-09 23:29 ` Timur Tabi
2015-11-10 8:38 ` Arnd Bergmann
2015-11-10 16:06 ` Sinan Kaya
2015-11-10 16:47 ` Arnd Bergmann
2015-11-10 17:00 ` Timur Tabi
2015-11-10 19:13 ` Arnd Bergmann
2015-11-10 21:03 ` Timur Tabi
2015-11-10 21:54 ` Arnd Bergmann
2015-11-10 21:59 ` Timur Tabi
2015-11-10 22:08 ` Arnd Bergmann
2015-11-10 17:19 ` Sinan Kaya
2015-11-10 18:27 ` James Bottomley
2015-11-10 19:14 ` Sinan Kaya
2015-11-10 19:43 ` James Bottomley
2015-11-10 19:56 ` Sinan Kaya
2015-11-10 20:05 ` James Bottomley
2015-11-10 20:26 ` Sinan Kaya
2015-11-10 20:35 ` James Bottomley
2015-11-10 19:56 ` Arnd Bergmann
2015-11-10 20:58 ` Sinan Kaya
2015-11-10 22:06 ` Arnd Bergmann
2015-11-09 14:00 ` Sinan Kaya
2015-11-09 1:57 ` [PATCH V2 2/3] scsi: fix compiler warning for sg Sinan Kaya
2015-11-09 14:14 ` Andy Shevchenko
2015-11-10 3:21 ` Sinan Kaya
2015-11-10 3:26 ` Timur Tabi
2015-11-10 4:51 ` Sinan Kaya
2015-11-10 4:53 ` Timur Tabi
2015-11-10 9:23 ` Andy Shevchenko
2015-11-10 10:09 ` Arnd Bergmann
2015-11-09 1:57 ` [PATCH V2 3/3] scsi: mptxsas: offload IRQ execution Sinan Kaya
2015-11-09 7:15 ` Hannes Reinecke [this message]
2015-11-09 14:01 ` Sinan Kaya
2015-11-10 5:59 ` Sinan Kaya
2016-03-16 15:31 ` Christopher Covington
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