On Tuesday 01 April 2008, joern@xxxxxxxxx wrote: > + > +static DEFINE_MUTEX(compr_mutex); > +static struct z_stream_s stream; > + How much time is spent in the compression code? Would it be helpful to have a percpu stream and do preempt_disable around it instead of the mutex? That would improve parallelism and cache-locality of the compression, at the cost of adding a source of latency to preemptible kernels. Arnd <>< -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
