linux-kernel - TREE_SRCU slows hotplug by factor ~16

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-next>] [day] [month] [year] [list]

Date:   Mon, 24 Apr 2017 04:48:09 +0200
From:   Mike Galbraith <efault@....de>
To:     "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: TREE_SRCU slows hotplug by factor ~16

Greetings,

Running Steven's hotplug stress script in tip w. CLASSIC_SRCU takes 55s
in my i4790 box, whereas TREE_SRCU takes over 16m.  (Master with the
same config does it in 39s.. but then lockdep isn't enabled in master)

	-Mike