linux-kernel - Re: CFS: some bad numbers with Java/database threading [FIXED]

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: <46F17D03.9090801@nortel.com>
Date:	Wed, 19 Sep 2007 13:48:19 -0600
From:	"Chris Friesen" <cfriesen@...tel.com>
To:	davids@...master.com
CC:	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>
Subject: Re: CFS: some bad numbers with Java/database threading [FIXED]

David Schwartz wrote:

> Nonsense. The task is always ready-to-run. There is no reason its CPU should
> be low. This bug report is based on a misunderstanding of what yielding
> means.

The yielding task has given up the cpu.  The other task should get to 
run for a timeslice (or whatever the equivalent is in CFS) until the 
yielding task again "becomes head of the thread list".

Chris
-
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/