Hi, I didn't follow all of the scheduler debates and flamewars, so apologies if this was already covered. Anyway.
lmbench 3 lat_ctx context switching time with 2 processes bound to a single core increases by between 25%-35% on my Core2 system (didn't do enough runs to get more significance, but it is around 30%). The problem bisected to the main CFS commit. I was really hoping that a smaller runqueue data structure could actually increase performance with the common case of small numbers of tasks :( I assume this was a known issue before CFS was merged. Do you know what is causing the slowdown? Any plans to fix it? Thanks, Nick - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/