As I've reported before, I've seen similar results, but I don't use X. "periodical bad latency" happens all the time while measurements example run. It was with 2.4.18 + rtlinux 3.1(Modified), same as Andrew is using.
It happens on PentiumIII-S 1266MHz + i815 chipset SBC (NI 8176 PXI controller). But on the same machine, 2.4.4 + rtlinux 3.1 (Official config) doesn't show this behavior. My other PICMG SBC (PIII 1000MHz + i815) behaves same as above on this matter. Just FYI. For now, I'm going to use 2.4.4 kernel + rtliux3.1. On Thu, 20 Jun 2002 15:53:21 -0700 Andrew Gaul <[EMAIL PROTECTED]> wrote: [snip] > ... start "while :; do cat /dev/null; done", periodically bad latency ... > > min: 0, max: 35104 > min: 32, max: 34272 > min: 0, max: 41152 > min: 0, max: 652608 > min: 32, max: 35360 > min: 32, max: 32000 > min: 0, max: 36544 > min: 0, max: 801472 > min: 0, max: 33856 > min: 64, max: 30560 > min: 0, max: 33984 > min: 0, max: 758240 [snip] ================================= Masahiro ABE, A&D Co., Ltd. Japan -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/
