| Message ID | cover.1600166281.git.qemu_oss@crudebyte.com |
|---|---|
| Headers | show |
| Series | 9p queue | expand |
On Wed, 16 Sep 2020 at 10:20, Christian Schoenebeck <qemu_oss@crudebyte.com> wrote: > > The following changes since commit 2d2c73d0e3d504a61f868e46e6abd5643f38091b: > > Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200914-1' into staging (2020-09-14 16:03:08 +0100) > > are available in the Git repository at: > > https://github.com/cschoenebeck/qemu.git tags/pull-9p-20200915 > > for you to fetch changes up to c418f935ac6aed9aa1dc0ceb4b19044a9b7b7968: > > 9pfs: disable msize warning for synth driver (2020-09-15 12:12:03 +0200) > > ---------------------------------------------------------------- > The intention of the following two patches is making users aware about > the negative file I/O performance impact when using a very low value > for 9P client parameter 'msize', which especially is the case if no > 'msize' parameter was supplied by the user with a 9P Linux client at all. > > All it does is logging a performance warning on host side (once) in > that case. By setting 'msize' on client side to any value larger than > 8192 the performance warning will disappear. > > See https://wiki.qemu.org/Documentation/9psetup#msize for details. > > ---------------------------------------------------------------- Applied, thanks. Please update the changelog at https://wiki.qemu.org/ChangeLog/5.2 for any user-visible changes. -- PMM
The following changes since commit 2d2c73d0e3d504a61f868e46e6abd5643f38091b: Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200914-1' into staging (2020-09-14 16:03:08 +0100) are available in the Git repository at: https://github.com/cschoenebeck/qemu.git tags/pull-9p-20200915 for you to fetch changes up to c418f935ac6aed9aa1dc0ceb4b19044a9b7b7968: 9pfs: disable msize warning for synth driver (2020-09-15 12:12:03 +0200) ---------------------------------------------------------------- The intention of the following two patches is making users aware about the negative file I/O performance impact when using a very low value for 9P client parameter 'msize', which especially is the case if no 'msize' parameter was supplied by the user with a 9P Linux client at all. All it does is logging a performance warning on host side (once) in that case. By setting 'msize' on client side to any value larger than 8192 the performance warning will disappear. See https://wiki.qemu.org/Documentation/9psetup#msize for details. ---------------------------------------------------------------- Christian Schoenebeck (2): 9pfs: log warning if msize <= 8192 9pfs: disable msize warning for synth driver fsdev/file-op-9p.h | 4 ++++ hw/9pfs/9p-synth.c | 2 ++ hw/9pfs/9p.c | 9 +++++++++ 3 files changed, 15 insertions(+)