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| author | Artyom Tarasenko | 2019-04-12 23:06:17 +0200 |
|---|---|---|
| committer | David Gibson | 2019-04-26 03:37:57 +0200 |
| commit | aaef873b130f4f9c78f8e97b69c235c81b8b8b88 (patch) | |
| tree | a109020b7eee2bbc95cad4c873bab2f52ee5e40b /bt-host.c | |
| parent | ppc/hash32: Rework R and C bit updates (diff) | |
| download | qemu-aaef873b130f4f9c78f8e97b69c235c81b8b8b88.tar.gz qemu-aaef873b130f4f9c78f8e97b69c235c81b8b8b88.tar.xz qemu-aaef873b130f4f9c78f8e97b69c235c81b8b8b88.zip | |
target/ppc: improve performance of large BAT invalidations
Performing a complete flush is ~ 100 times faster than flushing
256MiB of 4KiB pages. Set a limit of 1024 pages and perform a complete
flush afterwards.
This patch significantly speeds up AIX 5.1 and NetBSD-ofppc.
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Message-Id: <1555103178-21894-4-git-send-email-atar4qemu@gmail.com>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'bt-host.c')
0 files changed, 0 insertions, 0 deletions