From: Christoph Hellwig <hch@lst.de>
To: kernel test robot <yujie.liu@intel.com>
Cc: Christoph Hellwig <hch@lst.de>,
oe-lkp@lists.linux.dev, lkp@intel.com,
linux-kernel@vger.kernel.org, David Sterba <dsterba@suse.com>,
Johannes Thumshirn <johannes.thumshirn@wdc.com>,
Anand Jain <anand.jain@oracle.com>,
linux-btrfs@vger.kernel.org, ying.huang@intel.com,
feng.tang@intel.com, fengwei.yin@intel.com
Subject: Re: [linus:master] [btrfs] 4ae2edf12d: fio.write_iops -11.9% regression
Date: Fri, 14 Apr 2023 07:24:58 +0200 [thread overview]
Message-ID: <20230414052458.GA11616@lst.de> (raw)
In-Reply-To: <202304140917.9e9f5c1-yujie.liu@intel.com>
On Fri, Apr 14, 2023 at 10:01:51AM +0800, kernel test robot wrote:
> Hello,
>
> kernel test robot noticed a -11.9% regression of fio.write_iops on:
>
> commit: 4ae2edf12d49fdbaea2dfda0bb2ec06501bd3493 ("btrfs: simplify parameters of btrfs_lookup_bio_sums")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
Can you revalidate this? The patch is purely a parameter passing
cleanup, so a large reduction in IOPS looks very suspicious.
next prev parent reply other threads:[~2023-04-14 5:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-14 2:01 [linus:master] [btrfs] 4ae2edf12d: fio.write_iops -11.9% regression kernel test robot
2023-04-14 5:24 ` Christoph Hellwig [this message]
2023-04-14 8:22 ` Yujie Liu
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