RE: Random high CPU utilization in blk-mq with the none scheduler

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To: Jens Axboe <axboe@xxxxxxxxx>, "'ming.lei@xxxxxxxxxx'" <ming.lei@xxxxxxxxxx>, "'Christoph Hellwig'" <hch@xxxxxx>, "'linux-block@xxxxxxxxxxxxxxx'" <linux-block@xxxxxxxxxxxxxxx>
Subject: RE: Random high CPU utilization in blk-mq with the none scheduler
From: Dexuan Cui <decui@xxxxxxxxxxxxx>
Date: Sat, 11 Dec 2021 18:54:58 +0000
Accept-language: en-US
Cc: Long Li <longli@xxxxxxxxxxxxx>, "Michael Kelley (LINUX)" <mikelley@xxxxxxxxxxxxx>, "'linux-kernel@xxxxxxxxxxxxxxx'" <linux-kernel@xxxxxxxxxxxxxxx>
In-reply-to: <b4350274-7219-1d1f-7a39-3f445c081fd1@kernel.dk>
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> From: Jens Axboe <axboe@xxxxxxxxx>
> Sent: Saturday, December 11, 2021 6:21 AM
> 
> Sorry, can you do:
> 
> # perf report -g --no-children
> 
> instead?

Attached.

Attachment: perf-report-g-no-children.log.bz2
Description: perf-report-g-no-children.log.bz2

Follow-Ups:
- Re: Random high CPU utilization in blk-mq with the none scheduler
  - From: Jens Axboe

References:
- Random high CPU utilization in blk-mq with the none scheduler
  - From: Dexuan Cui
- RE: Random high CPU utilization in blk-mq with the none scheduler
  - From: Dexuan Cui
- Re: Random high CPU utilization in blk-mq with the none scheduler
  - From: Jens Axboe
- RE: Random high CPU utilization in blk-mq with the none scheduler
  - From: Dexuan Cui
- Re: Random high CPU utilization in blk-mq with the none scheduler
  - From: Jens Axboe
- RE: Random high CPU utilization in blk-mq with the none scheduler
  - From: Dexuan Cui
- Re: Random high CPU utilization in blk-mq with the none scheduler
  - From: Jens Axboe

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