Messages in this thread | | | Subject | Re: [PATCH v12 00/31] Speculative page faults | From | Laurent Dufour <> | Date | Mon, 6 Jul 2020 14:27:36 +0200 |
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Le 06/07/2020 à 11:25, Chinwen Chang a écrit : > On Thu, 2019-06-20 at 16:19 +0800, Haiyan Song wrote: >> Hi Laurent, >> >> I downloaded your script and run it on Intel 2s skylake platform with spf-v12 patch >> serials. >> >> Here attached the output results of this script. >> >> The following comparison result is statistics from the script outputs. >> >> a). Enable THP >> SPF_0 change SPF_1 >> will-it-scale.page_fault2.per_thread_ops 2664190.8 -11.7% 2353637.6 >> will-it-scale.page_fault3.per_thread_ops 4480027.2 -14.7% 3819331.9 >> >> >> b). Disable THP >> SPF_0 change SPF_1 >> will-it-scale.page_fault2.per_thread_ops 2653260.7 -10% 2385165.8 >> will-it-scale.page_fault3.per_thread_ops 4436330.1 -12.4% 3886734.2 >> >> >> Thanks, >> Haiyan Song >> >> >> On Fri, Jun 14, 2019 at 10:44:47AM +0200, Laurent Dufour wrote: >>> Le 14/06/2019 à 10:37, Laurent Dufour a écrit : >>>> Please find attached the script I run to get these numbers. >>>> This would be nice if you could give it a try on your victim node and share the result. >>> >>> Sounds that the Intel mail fitering system doesn't like the attached shell script. >>> Please find it there: https://gist.github.com/ldu4/a5cc1a93f293108ea387d43d5d5e7f44 >>> >>> Thanks, >>> Laurent. >>> > > Hi Laurent, > > We merged SPF v11 and some patches from v12 into our platforms. After > several experiments, we observed SPF has obvious improvements on the > launch time of applications, especially for those high-TLP ones, > > # launch time of applications(s): > > package version w/ SPF w/o SPF improve(%) > ------------------------------------------------------------------ > Baidu maps 10.13.3 0.887 0.98 9.49 > Taobao 8.4.0.35 1.227 1.293 5.10 > Meituan 9.12.401 1.107 1.543 28.26 > WeChat 7.0.3 2.353 2.68 12.20 > Honor of Kings 1.43.1.6 6.63 6.713 1.24
That's great news, thanks for reporting this!
> > By the way, we have verified our platforms with those patches and > achieved the goal of mass production.
Another good news! For my information, what is your targeted hardware?
Cheers, Laurent.
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