diff options
| author | Kai-Heng Feng <[email protected]> | 2020-05-07 22:21:07 +0800 |
|---|---|---|
| committer | Jeff Kirsher <[email protected]> | 2020-05-22 18:21:52 -0700 |
| commit | f29801030ac67bf98b7a65d3aea67b30769d4f7c (patch) | |
| tree | 97e41b08076095bb19d0a10c886507c481035eeb /tools/perf/scripts/python/stackcollapse.py | |
| parent | 0c80cdbf33207c7aea1aec9027ad8011bd6178ad (diff) | |
e1000e: Disable TSO for buffer overrun workaround
Commit b10effb92e27 ("e1000e: fix buffer overrun while the I219 is
processing DMA transactions") imposes roughly 30% performance penalty.
The commit log states that "Disabling TSO eliminates performance loss
for TCP traffic without a noticeable impact on CPU performance", so
let's disable TSO by default to regain the loss.
CC: stable <[email protected]>
Fixes: b10effb92e27 ("e1000e: fix buffer overrun while the I219 is processing DMA transactions")
BugLink: https://bugs.launchpad.net/bugs/1802691
Signed-off-by: Kai-Heng Feng <[email protected]>
Tested-by: Aaron Brown <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions