From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Mon, 23 Sep 2013 18:27:19 -0400 To: 9fans@9fans.net Message-ID: <6cb44f954c18c17f0bb80ad81f96c321@ladd.quanstro.net> In-Reply-To: References: <64cc61c082febe489ac3244473bb4ca4@brasstown.quanstro.net> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [9fans] userspace semlocks Topicbox-Message-UUID: 8102079e-ead8-11e9-9d60-3106f5b1d025 here's the raw data from a seperate run, and slightly different code, and a different machine. this is a test with thread(2) channels with T tx procs =C3=97 R rx procs: ; aux/cpuid -i Intel(R) Xeon(R) CPU E31230 @ 3.20GHz ; wc -l /dev/sysstat 8 /dev/sysstat ; for(i in 1 2 4 8 16)time 6.chantestsem -O0 -R^$i -T^$i>/dev/null 0.00u 0.00s 6.56r 6.chantestsem -O0 -R1 -T1 0.00u 0.00s 12.72r 6.chantestsem -O0 -R2 -T2 0.00u 0.00s 31.46r 6.chantestsem -O0 -R4 -T4 0.00u 0.00s 67.66r 6.chantestsem -O0 -R8 -T8 0.00u 0.00s 149.35r 6.chantestsem -O0 -R16 -T16 ; for(i in 1 2 4 8 16)time 6.chantest -O0 -R^$i -T^$i>/dev/null 0.00u 0.00s 6.40r 6.chantest -O0 -R1 -T1 0.00u 0.00s 9.32r 6.chantest -O0 -R2 -T2 0.00u 0.00s 17.63r 6.chantest -O0 -R4 -T4 0.00u 0.00s 45.99r 6.chantest -O0 -R8 -T8 0.00u 0.00s 99.69r 6.chantest -O0 -R16 -T16 - erik