On 2017/11/23 19:43, peter.enderborg@xxxxxxxx wrote: > The warning of slow allocation has been removed, this is > a other way to fetch that information. But you need > to enable the trace. The exit function also returns > information about the number of retries, how long > it was stalled and failure reason if that happened. However, the fast path (I mean, get_page_from_freelist() at "/* First allocation attempt */" label) might be slow, for it is allowed to call node_reclaim() which can take uncontrollable duration. I think that you need to add hooks like http://lkml.kernel.org/r/1510833448-19918-1-git-send-email-penguin-kernel@xxxxxxxxxxxxxxxxxxx does. ;-) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
