On Tue, Apr 14, 2015 at 7:49 AM, Peter Lieven p...@kamp.de wrote:
Ronnie came up with an idea to reduce latency if !bs-enable_write_cache for
an iSCSI device.
If !bs-enable_write_cache Qemu sends a flush after every single write. What
could be done is
the following:
if
On 14/04/2015 08:49, Peter Lieven wrote:
Hi,
Ronnie came up with an idea to reduce latency if !bs-enable_write_cache
for an iSCSI device.
If !bs-enable_write_cache Qemu sends a flush after every single write.
What could be done is
the following:
if (!bs-enable_write_cache)
set FUA
On 14/04/2015 11:04, Stefan Hajnoczi wrote:
Do other commands besides writes rely on iscsi_co_flush()?
Paolo: I checked NBD and noticed there is an inconsistency there.
nbd_co_writev_1() uses FUA when bs-enable_write_cache == true but it
also sends flushes. Does that mean it's doing
Am 14.04.2015 um 11:04 schrieb Stefan Hajnoczi:
On Tue, Apr 14, 2015 at 7:49 AM, Peter Lieven p...@kamp.de wrote:
Ronnie came up with an idea to reduce latency if !bs-enable_write_cache for
an iSCSI device.
If !bs-enable_write_cache Qemu sends a flush after every single write. What
could be
