Commit aa9f1012 authored Oct 19, 2016 by Bob Peterson Committed by David Teigland Oct 19, 2016

dlm: don't specify WQ_UNBOUND for the ast callback workqueue



This patch removes the WQ_UNBOUND flag (which implies WQ_HIGHPRI)
from the DLM's ast work queue, in favor of just WQ_HIGHPRI.
This has been shown to cause a 19 percent performance increase for
simultaneous inode creates on GFS2 with fs_mark.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

parent d2fee58a

fs/dlm/ast.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -268,7 +268,7 @@ void dlm_callback_work(struct work_struct *work)
		int dlm_callback_start(struct dlm_ls *ls)
		{
		ls->ls_callback_wq = alloc_workqueue("dlm_callback",
		WQ_UNBOUND \| WQ_MEM_RECLAIM, 0);
		WQ_HIGHPRI \| WQ_MEM_RECLAIM, 0);
		if (!ls->ls_callback_wq) {
		log_print("can't start dlm_callback workqueue");
		return -ENOMEM;