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: <5486cca80705291259s63edf2bcv7035f700aa23e8b1@mail.gmail.com>
Date:	Tue, 29 May 2007 21:59:34 +0200
From:	"Antonino Ingargiola" <tritemio@...il.com>
To:	"Con Kolivas" <kernel@...ivas.org>
Cc:	"ck list" <ck@....kolivas.org>,
	"linux kernel mailing list" <linux-kernel@...r.kernel.org>
Subject: Re: [ck] 2.6.22-rc3-ck1

2007/5/29, Antonino Ingargiola <tritemio@...il.com>:
[cut]
> Swap Prefetch OFF
> # ./sp_tester
> Ram 776388000  Swap 514040000
> Total ram to be malloced: 1033408000 bytes
> Starting first malloc of 516704000 bytes
> Starting 1st read of first malloc
> Touching this much ram takes 1642 milliseconds
> Starting second malloc of 516704000 bytes
> Completed second malloc and free
> Sleeping for 60 seconds
> Important part - starting reread of first malloc
> Completed read of first malloc
> Timed portion 9089 milliseconds
>
>
> Swap Prefetch OFF
> # ./sp_tester
> Ram 776388000  Swap 514040000
> Total ram to be malloced: 1033408000 bytes
> Starting first malloc of 516704000 bytes
> Starting 1st read of first malloc
> Touching this much ram takes 1635 milliseconds
> Starting second malloc of 516704000 bytes
> Completed second malloc and free
> Sleeping for 60 seconds
> Important part - starting reread of first malloc
> Completed read of first malloc
> Timed portion 1783 milliseconds

The second case is clearly with swap prefetch *ON*, sorry.


     ~  Antonio
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ