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  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]
Date:	Wed, 7 Oct 2015 09:06:52 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Jesper Dangaard Brouer <brouer@...hat.com>
Cc:	linux-mm@...ck.org, netdev@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [MM PATCH V4.1 5/6] slub: support for bulk free with SLUB
 freelists

> My specific CPU (i7-4790K @ 4.00GHz) unfortunately seems to have
> limited "Frontend" support. E.g. 
> 
>  # perf record -g -a -e stalled-cycles-frontend
>  Error:
>  The stalled-cycles-frontend event is not supported.
> 
> And AFAIK icache misses are part of "frontend".

Ignore stalled-cycles-frontend. It is very unreliable and has never worked right.
toplev gives you much more reliable output.


-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists