On Tue, Jun 22, 2010 at 10:31:24PM +0800, Christoph Hellwig wrote: > On Tue, Jun 22, 2010 at 09:52:34PM +0800, Wu Fengguang wrote: > > 2) most writeback will be submitted by one per-bdi-flusher, so no worry > > of cache bouncing (this also means the per CPU counter error is > > normally bounded by the batch size) > > What counter are we talking about exactly? Once balanance_dirty_pages bdi_stat(bdi, BDI_WRITTEN) introduced in this patch. > stops submitting I/O the per-bdi flusher thread will in fact be > the only thing submitting writeback, unless you count direct invocations > of writeback_single_inode. Right. Thanks, Fengguang -- 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
