On Fri, 2 Sep 2011 00:55:54 +0200 Luka Perkov <open...@lukaperkov.net> wrote:
> Also in linux-2.6.39.4/kernel/Kconfig.preempt you will see for > CONFIG_PREEMPT: > > Select this if you are building a kernel for a desktop or > embedded system with latency requirements in the milliseconds > range > > Because of that I made changes to all kernel config files. > > Signed-off-by: Luka Perkov < openwrt ->-to->- lukaperkov.net > Uhm, wait a second. What are you actually trying to fix with enabling preemption? I didn't really get it by reading your mail. Some random text in a kernel config file is _not_ a reason to make a change with a scope like this one. Enabling preemption _does_ have negative effects. For one it increases the kernel size. And it also increases the runtime overhead (especially on UP). And finally, I'm not really convinced that any of the routers/APs that OpenWRT supports have "latency requirements in the milliseconds range". I'd rather say throughput matters a _lot_ more than a millisecond of latency for these devices. -- Greetings, Michael. _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
