Am 25.11.2014 um 10:12 hat Max Reitz geschrieben: > On 2014-10-28 at 07:45, Fam Zheng wrote: > >Using /tmp (usually mounted as tmpfs) and cache=writeback, the quick > >group can be quicker. > > > >On my laptop (Lenovo T430s with Fedora 20), this reduces the time from > >50s to 30s. > > > >Signed-off-by: Fam Zheng <f...@redhat.com> > >--- > > tests/qemu-iotests-quick.sh | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > >diff --git a/tests/qemu-iotests-quick.sh b/tests/qemu-iotests-quick.sh > >index 12af731..0b54dbf 100755 > >--- a/tests/qemu-iotests-quick.sh > >+++ b/tests/qemu-iotests-quick.sh > >@@ -3,6 +3,6 @@ > > cd tests/qemu-iotests > > ret=0 > >-./check -T -qcow2 -g quick || ret=1 > >+TEST_DIR=/tmp/qemu-iotests-quick-$$ ./check -T -qcow2 -g quick -c writeback > >|| ret=1 > > There are (at least) two tests which don't work with -c writeback > (026 and 039), one of them is in the quick group (039). Why not use > -c writethrough? It doesn't make any difference on tmpfs anyway (we > can't omit it because that will break 091).
Why use any -c? The default is the fast option writeback, and for those test cases that don't support writeback, something working is chosen instead. Kevin
