| 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
| ||
|
Date: Sun, 16 Aug 2015 17:02:44 +0200 From: Thomas Graf <tgraf@...g.ch> To: Phil Sutter <phil@....cc> Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, davem@...emloft.net Subject: Re: [PATCH] rhashtable-test: extend to test concurrency On 08/15/15 at 12:37am, Phil Sutter wrote: > After having tested insertion, lookup, table walk and removal, spawn a > number of threads running operations on the same rhashtable. Each of > them will: > > 1) insert it's own set of objects, > 2) lookup every successfully inserted object and finally > 3) remove objects in several rounds until all of them have been removed, > making sure the remaining ones are still found after each round. > > This should put a good amount of load onto the system and due to > synchronising thread startup via two semaphores also extensive > concurrent table access. > > The default number of ten threads returned within half a second on my > local VM with two cores. Running 200 threads took about four seconds. If > slow systems suffer too much from this though, the default could be > lowered or even set to zero so this extended test does not run at all by > default. > > Signed-off-by: Phil Sutter <phil@....cc> Looks great. A default of 10 makes sense as well. Thanks a lot! Acked-by: Thomas Graf <tgraf@...g.ch> -- 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