From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Ming Lei <ming.lei@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Stefan Haberland <sth@linux.vnet.ibm.com>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH] blk-mq: only run mapped hw queues in blk_mq_run_hw_queues()
Date: Thu, 5 Apr 2018 19:43:20 +0200 [thread overview]
Message-ID: <201539a5-c81a-5f5b-dc8f-f3999886f81e@de.ibm.com> (raw)
In-Reply-To: <3a72f42f-db90-6092-5e1b-0579d2095daa@de.ibm.com>
On 04/05/2018 07:39 PM, Christian Borntraeger wrote:
>
>
> On 04/05/2018 06:11 PM, Ming Lei wrote:
>>>
>>> Could you please apply the following patch and provide the dmesg boot log?
>>
>> And please post out the 'lscpu' log together from the test machine too.
>
> attached.
>
> As I said before this seems to go way with CONFIG_NR_CPUS=64 or smaller.
> We have 282 nr_cpu_ids here (max 141CPUs on that z13 with SMT2) but only 8 Cores
> == 16 threads.
To say it differently
The whole system has up to 141 cpus, but this LPAR has only 8 cpus assigned. So we
have 16 CPUS (SMT) but this could become up to 282 IF I would do CPU hotplug. (But
this is not used here).
next prev parent reply other threads:[~2018-04-05 17:43 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-28 1:20 [PATCH] blk-mq: only run mapped hw queues in blk_mq_run_hw_queues() Ming Lei
2018-03-28 3:22 ` Jens Axboe
2018-03-28 7:45 ` Christian Borntraeger
2018-03-28 14:38 ` Jens Axboe
2018-03-28 14:53 ` Jens Axboe
2018-03-28 15:38 ` Christian Borntraeger
2018-03-28 15:26 ` Ming Lei
2018-03-28 15:36 ` Christian Borntraeger
2018-03-28 15:44 ` Christian Borntraeger
2018-03-29 2:00 ` Ming Lei
2018-03-29 7:23 ` Christian Borntraeger
2018-03-29 9:09 ` Christian Borntraeger
2018-03-29 9:40 ` Ming Lei
2018-03-29 10:10 ` Christian Borntraeger
2018-03-29 10:48 ` Ming Lei
2018-03-29 10:49 ` Christian Borntraeger
2018-03-29 11:43 ` Ming Lei
2018-03-29 11:49 ` Christian Borntraeger
2018-03-30 2:53 ` Ming Lei
2018-04-04 8:18 ` Christian Borntraeger
2018-04-05 16:05 ` Ming Lei
2018-04-05 16:11 ` Ming Lei
2018-04-05 17:39 ` Christian Borntraeger
2018-04-05 17:43 ` Christian Borntraeger [this message]
2018-04-06 8:41 ` Ming Lei
2018-04-06 8:51 ` Christian Borntraeger
2018-04-06 8:53 ` Christian Borntraeger
2018-04-06 9:23 ` Ming Lei
2018-04-06 10:19 ` Christian Borntraeger
2018-04-06 13:41 ` Ming Lei
2018-04-06 14:26 ` Christian Borntraeger
2018-04-06 14:58 ` Ming Lei
2018-04-06 15:11 ` Christian Borntraeger
2018-04-06 15:40 ` Ming Lei
2018-04-06 11:37 ` Christian Borntraeger
2018-04-06 8:35 ` Christian Borntraeger
2018-03-29 9:52 ` Ming Lei
2018-03-29 10:11 ` Christian Borntraeger
2018-03-29 10:12 ` Christian Borntraeger
2018-03-29 10:13 ` Ming Lei
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