From: Bart Van Assche <bvanassche@acm.org>
To: kernel test robot <oliver.sang@intel.com>
Cc: 0day robot <lkp@intel.com>, John Garry <john.garry@huawei.com>,
Hannes Reinecke <hare@suse.com>,
LKML <linux-kernel@vger.kernel.org>,
lkp@lists.01.org, ying.huang@intel.com, feng.tang@intel.com,
zhengjun.xing@intel.com,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Christoph Hellwig <hch@lst.de>,
linux-scsi@vger.kernel.org,
"James E.J. Bottomley" <jejb@linux.ibm.com>
Subject: Re: 2463a604a8: netperf.Throughput_tps 12.8% improvement
Date: Tue, 25 May 2021 09:44:26 -0700 [thread overview]
Message-ID: <f572997b-8979-26bb-cb3b-9926086c4cc7@acm.org> (raw)
In-Reply-To: <20210525064427.GC7744@xsang-OptiPlex-9020>
On 5/24/21 11:44 PM, kernel test robot wrote:
> FYI, we noticed a 12.8% improvement of netperf.Throughput_tps due to commit:
>
> commit: 2463a604a86728777ce4284214a52de46a808c9e ("[PATCH v3 2/3] Introduce enums for the SAM, message, host and driver status codes")
> url: https://github.com/0day-ci/linux/commits/Bart-Van-Assche/Introduce-enums-for-SCSI-status-codes/20210524-105751
> base: https://git.kernel.org/cgit/linux/kernel/git/mkp/scsi.git for-next
>
> in testcase: netperf
> on test machine: 192 threads 4 sockets Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz with 192G memory
> with following parameters:
>
> ip: ipv4
> runtime: 300s
> nr_threads: 16
> cluster: cs-localhost
> test: TCP_CRR
> cpufreq_governor: performance
> ucode: 0x5003006
>
> test-description: Netperf is a benchmark that can be use to measure various aspect of networking performance.
> test-url: http://www.netperf.org/netperf/
The above email reports a performance improvement for the networking
subsystem while my patch only affects the SCSI subsystem and should not
have any performance impact. I'm confused by the above feedback ...
Bart.
next prev parent reply other threads:[~2021-05-25 16:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-24 2:54 [PATCH v3 0/3] Introduce enums for SCSI status codes Bart Van Assche
2021-05-24 2:54 ` [PATCH v3 1/3] libsas: Introduce more SAM status code aliases in enum exec_status Bart Van Assche
2021-05-24 15:25 ` Himanshu Madhani
2021-05-24 2:54 ` [PATCH v3 2/3] Introduce enums for the SAM, message, host and driver status codes Bart Van Assche
2021-05-24 15:25 ` Himanshu Madhani
2021-05-25 6:44 ` 2463a604a8: netperf.Throughput_tps 12.8% improvement kernel test robot
2021-05-25 16:44 ` Bart Van Assche [this message]
2021-05-26 1:50 ` [LKP] " Xing Zhengjun
2021-05-24 2:54 ` [PATCH v3 3/3] Change the type of the second argument of scsi_host_complete_all_commands() Bart Van Assche
2021-05-24 15:25 ` Himanshu Madhani
2021-06-08 2:27 ` [PATCH v3 0/3] Introduce enums for SCSI status codes Martin K. Petersen
2021-06-16 3:48 ` Martin K. Petersen
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