Messages in this thread | | | From | "Huang\, Ying" <> | Subject | Re: [LKP] [btrfs] 302167c50b: fio.write_bw_MBps -12.4% regression | Date | Fri, 24 May 2019 15:46:17 +0800 |
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"Huang, Ying" <ying.huang@intel.com> writes:
> "Huang, Ying" <ying.huang@intel.com> writes: > >> Hi, Josef, >> >> kernel test robot <rong.a.chen@intel.com> writes: >> >>> Greeting, >>> >>> FYI, we noticed a -12.4% regression of fio.write_bw_MBps due to commit: >>> >>> >>> commit: 302167c50b32e7fccc98994a91d40ddbbab04e52 ("btrfs: don't end >>> the transaction for delayed refs in throttle") >>> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git pending-fixes >>> >>> in testcase: fio-basic >>> on test machine: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 64G memory >>> with following parameters: >>> >>> runtime: 300s >>> nr_task: 8t >>> disk: 1SSD >>> fs: btrfs >>> rw: randwrite >>> bs: 4k >>> ioengine: sync >>> test_size: 400g >>> cpufreq_governor: performance >>> ucode: 0xb00002e >>> >>> test-description: Fio is a tool that will spawn a number of threads >>> or processes doing a particular type of I/O action as specified by >>> the user. >>> test-url: https://github.com/axboe/fio >>> >>> >> >> Do you have time to take a look at this regression? > > Ping
Ping again.
Best Regards, Huang, Ying
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