From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <26476e3641ccfa94895851102b63cae8@collyer.net> To: 9fans@cse.psu.edu Subject: Re: [9fans] NOW it's like lightning From: Geoff Collyer Date: Tue, 8 Jun 2004 19:18:16 -0700 In-Reply-To: <7b628fbb325ea03705615fca437c1735@collyer.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: 9992ad3c-eacd-11e9-9e20-41e7f4b1d025 I just did a quick timing test and it would appear that the slowness is a local problem, not a generic Plan 9 Ethernet problem. Reading ~4MB (/386/lib/*) from a Ken fs with client-side caching disabled took 17.89 seconds the first time (Ken fs doesn't use DMA for IDE ever [for historical reasons], though I might fix that), which is still roughly 260KB/s, an order of magnitude faster than the ~250Kb/sec cited. Reading it a second time, with the data in RAM cache on the file server, took 1.07 seconds, or 4.2MB/s, far faster than the 2.5Mb/sec cited between Windows and BSD. And that's over slow 100Mb/s Ethernet because I haven't got around to upgrading the file server to Intel's gigabit card yet.