From 37baddd7212717f259c33b3bb75720d718b92d2c Mon Sep 17 00:00:00 2001 From: Joris van Lieshout Date: Mon, 11 Aug 2014 17:12:23 +0200 Subject: [PATCH] dd with direct io is less impacting on Dom0 kernel resources Signed-off-by: Daan Hoogland (cherry picked from commit c4b78c3aaa8df20c8e892b9d5108d8f34f96ed0c) --- scripts/vm/hypervisor/xenserver/vmopsSnapshot | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/vm/hypervisor/xenserver/vmopsSnapshot b/scripts/vm/hypervisor/xenserver/vmopsSnapshot index 3aeafa53b1a..85444dc318c 100755 --- a/scripts/vm/hypervisor/xenserver/vmopsSnapshot +++ b/scripts/vm/hypervisor/xenserver/vmopsSnapshot @@ -201,7 +201,7 @@ def copyfile(fromFile, toFile, isISCSI): logging.debug("Starting to copy " + fromFile + " to " + toFile) errMsg = '' try: - cmd = ['dd', 'if=' + fromFile, 'of=' + toFile, 'bs=4M'] + cmd = ['dd', 'if=' + fromFile, 'iflag=direct', 'of=' + toFile, 'oflag=direct', 'bs=4M'] txt = util.pread2(cmd) except: try: