From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 5 Mar 2019 11:10:13 +0300 From: Konstantin Osipov Subject: Re: [tarantool-patches] [rfc 3/4] core/fiber: Put static watermark into stack to track its usage Message-ID: <20190305081013.GK21955@chai> References: <20190302125524.279852704@gmail.com> <20190302130034.050488016@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190302130034.050488016@gmail.com> To: tarantool-patches@freelists.org Cc: gorcunov@gmail.com, vdavydov.dev@gmail.com List-ID: * Cyrill Gorcunov [19/03/03 23:25]: > +/* > + * Random values generated with uuid. > + * Try to fit a cache line. > + */ > +static const uint64_t poison_pool[] = { > + 0x74f31d37285c4c37, 0xb10269a05bf10c29, > + 0x0994d845bd284e0f, 0x9ffd4f7129c184df, > + 0x357151e6711c4415, 0x8c5e5f41aafe6f28, > + 0x6917dd79e78049d5, 0xba61957c65ca2465, > +}; With randomness incorporated into each fiber I think we can reduce the poison pool to 4 8-byte integers or even less. -- Konstantin Osipov, Moscow, Russia, +7 903 626 22 32 http://tarantool.io - www.twitter.com/kostja_osipov