, Nick Piggin wrote:
I would like to start sending bits of vfs scalability improvements to be reviewed and hopefully merged. I will start with files_lock. Last time this one came up, it was criticised because some hoped to get rid of files list, and because it didn't have enough justification of the scalability improvement. For the first criticism, it isn't any more difficult to rip out if we are ever able to remove files list. For the second, I have gathered some statistics and written better justification. Andi I believe is finding kbuild is becoming limited by files lock on larger systems.
Yes we're seeing files_list lock as the major bottleneck on a 32 CPU Threads kernel build. I did a quick review of the patch and it looks good to me. Acked-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> -Andi -- 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
