From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 4 Mar 2009 22:55:04 -0500 From: "William K. Josephson" To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Message-ID: <20090305035504.GA45687@mero.morphisms.net> References: <3aaafc130903032105i742648d2o86ccd2630c4aa61c@mail.gmail.com> <21b55d1c3bb01fa55e90f9400a0cdfb1@quanstro.net> <3aaafc130903040852h691b8742t2052e61334c825eb@mail.gmail.com> <13426df10903040914q5b80031ene90d95d9dd53a19a@mail.gmail.com> <3aaafc130903041932t1008d7f1ue0ed339d47e3274f@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3aaafc130903041932t1008d7f1ue0ed339d47e3274f@mail.gmail.com> User-Agent: Mutt/1.4.2.3i Subject: Re: [9fans] threads vs forks Topicbox-Message-UUID: b3738076-ead4-11e9-9d60-3106f5b1d025 On Wed, Mar 04, 2009 at 10:32:55PM -0500, J.R. Mauro wrote: > What types of things degrade their performance? I'm interested in > seeing other data than the handful of benchmarks I've seen. I imagine > writes would be the culprit since you have to erase a whole block > first? Being full. Small random writes, too, although much more so for run-of-the-mill SSDs than for FusionIO. > Beyond that, though, I feel very shaky just hearing the term "wear > leveling". I've had more flash-based devices fail on me than hard > drives, but maybe I'm just crazy and the technology has gotten decent > enough in the past couple years to allay my worrying. It would just be > nice to see a bit stronger alternative being pushed as hard as SSDs. Using MLC or SLC NAND? :-p