linux-kernel - Re: A quick fio test (was Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3)

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 for Android: free password hash cracker in your pocket

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

Message-ID: <45E45BC5.30400@argo.co.il>
Date:	Tue, 27 Feb 2007 18:26:45 +0200
From:	Avi Kivity <avi@...o.co.il>
To:	Ingo Molnar <mingo@...e.hu>
CC:	suparna@...ibm.com, Jens Axboe <jens.axboe@...cle.com>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@....com.au>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Ulrich Drepper <drepper@...hat.com>,
	Zach Brown <zach.brown@...cle.com>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	"David S. Miller" <davem@...emloft.net>,
	Davide Libenzi <davidel@...ilserver.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: A quick fio test (was Re: [patch 00/13] Syslets, "Threadlets",
 generic AIO support, v3)

Ingo Molnar wrote:
>   
>> Maybe a device mapper delay target or nbd + O_DIRECT can insert delays 
>> to make the workload more disk-like.
>>     
>
> yeah. I'll hack a small timeout into loopback requests i think. But then 
> real disk-platter effects are left out ... so it all comes down to 
> eventually having to try it on real disks too :)
>   

Having a random component in the timeout may increase realism.

hundred-disk boxes are noisy, though the blinkenlights are nice :)


-- 
error compiling committee.c: too many arguments to function

-
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/