Messages in this thread | | | From | Benno Senoner <> | Subject | Re: [patch] lowlatency-2.2.10-N2, 'multimedia latency improvement' patch | Date | Mon, 2 Aug 1999 20:34:35 +0200 |
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On Mon, 02 Aug 1999, Ingo Molnar wrote: > On Sun, 1 Aug 1999, Andrea Arcangeli wrote: > > > >this is the next version of the 'low latencies' patch. Changes relative to > > > > I can't see why you added many run_task_queue calls. For the record, > > oh, it's just a remainder of a bad idea. (i was testing wether some > latencies are due to us constructing too big disk-IO queues via plugged > interfaces - but no. And the code remained accidentally.) Thanks for > pointing this out, i've fixed it in my tree. (together with the > bh->count++ thinko) > > -- mingo
Mingo, did you find additional spots which cold be RAM-size related like in my case ? Yesterday I retested latencies with mem=32m (without swap what a pain :-) ), and got about 6ms on disk writes, better than the 64m,128m and 256m case. If I get some time I will try out Roger's profiling patch let's see if I can find this nasty function which ruins your nice flat diagrams! :-)
Note that sometime I must run the test 2-3times to get greater than 5ms latencies.
regards, Benno.
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