Date: Thu, 9 Oct 2003 22:23:05 +0200 From: Sheldon Hearn <sheldonh@starjuice.net> To: Scott Sipe <css3@duke.edu> Cc: current@freebsd.org Subject: Re: Sched_Ule Message-ID: <20031009202305.GJ42736@starjuice.net> In-Reply-To: <Pine.GSO.4.58.0310090023330.26237@bio3.acpub.duke.edu> References: <Pine.GSO.4.58.0310090023330.26237@bio3.acpub.duke.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
On (2003/10/09 00:28), Scott Sipe wrote: > Anything that seems disk intensive: bzip2 (unbzip2ing one big file makes > this happen), making world, building ports, etc makes my X environment > practically unusable. Mouse stutters, reaction times is very slow, feels > 10x more sluggish than normal. (I'm running KDE if anyone is curious). A number of us are seeing this problem, and not all of us are entry level end-users. I'm using a single PIII with 1GB of RAM and maxusers 0. No Hyper-threading, nothing interesting in the kernel (apart from I686_CPU only, KTRACE and _KPOSIX_PRIORITY_SCHEDULING). The problem (as I recall) is that Jeff hasn't received reports from people who can dig into the problem and have the time to do so. For example, I'm pretty sure I could at least point a finger at the problem if I had time. But I'm under heavy pressure, and so the only solution that's feasible for me is to just switch to SCHED_4BSD and keep moving. What surprises me is that Jeff can't reproduce it. For me, the sluggish mouse problem manifests under these conditions: 1) Use a USB mouse, not a PS2 mouse. 2) SCHED_ULE in the kernel. 3) make buildworld (no -j necessary, but -k exacerbates the problem). 4) Fiddle around in X (no particular window manager required). Ciao, Sheldon.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20031009202305.GJ42736>