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authorCristian Dumitrescu <[email protected]>2021-01-14 14:33:15 +0000
committerTony Nguyen <[email protected]>2021-02-08 17:19:03 -0800
commitc8a8ca3408dcd28461d9bc8bceaf981e639272de (patch)
tree5e149b07ad1fbf73fc60def035f923ae88593e83 /tools/perf/scripts/python/check-perf-trace.py
parent08cbabb77e9098ec6c4a35911effac53e943c331 (diff)
i40e: remove unnecessary memory writes of the next to clean pointer
For performance reasons, avoid writing the ring next-to-clean pointer value back to memory on every update, as it is not really necessary. Instead, simply read it at initialization into a local copy, update the local copy as necessary and write the local copy back to memory after the last update. Signed-off-by: Cristian Dumitrescu <[email protected]> Tested-by: Kiran Bhandare <[email protected]> Signed-off-by: Tony Nguyen <[email protected]>
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