Jens Axboe wrote: > Tom, you are correct, the 'B' is a bounce and not a backmerge. Vasily, > you may want to look into your setup, bouncing is very harmful to io > performance. > >
Hello again, My node has 4GB RAM and by default block queue limit is high memory boundary: blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH); Driver doesn't set other bounce limit (like most drivers), so I have bounces. Seems, that all people with more then 1GB Memory should have such situation (except lucky beggars with "appropriate" drivers), am I right? Thanks, Vasily. - To unsubscribe from this list: send the line "unsubscribe linux-btrace" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
