Subject: Re: [linux-audio-dev] Lots about latency and disk i/o and JACK...
>>for example, even in 2.4.0, with the low latency patch, it was
scheduling delays of *anything*. the kernel is in the middle of an
thats the heart of the low latency issue, and its where both the
but i forgot to complete the paragraph above. the problems that were
--p
This archive was generated by hypermail 2b28
: Wed Oct 03 2001 - 18:53:35 EEST
From: Paul Davis (pbd_AT_Op.Net)
Date: Wed Oct 03 2001 - 18:57:10 EEST
>>possible to cause scheduling delays of 30-50-1000! msecs by hitting
>>the VM and disk subsystems (e.g. a 4-process C++ compile while running
>>Ardour).
>
>Hello. Scheduling delays of what? Soft-realtime processes? User
>processes?
operation during which is does not reschedule and the operation
takes a long time. typical examples involve the VM system and the disk
buffer cache.
preemptible kernel and low latency patches come in, though in
different ways.
in 2.4.0 were fixed by the time we got to about 2.4.4. that kernel is
pretty much free of such delays.