linux-kernel - Re: [PATCH 2/2] mm, numa: Migrate pages to local nodes quicker early in the lifetime of a task

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20181003130741.GA4488@linux.vnet.ibm.com>
Date:   Wed, 3 Oct 2018 18:37:41 +0530
From:   Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:     Mel Gorman <mgorman@...hsingularity.net>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Jirka Hladky <jhladky@...hat.com>,
        Rik van Riel <riel@...riel.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCH 2/2] mm, numa: Migrate pages to local nodes quicker early
 in the lifetime of a task

* Srikar Dronamraju <srikar@...ux.vnet.ibm.com> [2018-10-02 23:00:05]:

> I will try to get a DayTrader run in a day or two. There JVM and db threads
> act on the same memory, I presume it might show some insights.

I ran 2 runs of daytrader 7 with and without patch on a 2 node power9
PowerNv box.
https://github.com/WASdev/sample.daytrader7
In each run, has 8 JVMs.

Throughputs (Higher are better)
Without patch 19216.8 18900.7 Average: 19058.75
With patch    18644.5 18480.9 Average: 18562.70

Difference being -2.6% regression

-- 
Thanks and Regards
Srikar Dronamraju