help with performance loss question

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Jason,

I am trying to figure out what caused a big drop in performance in the rxe driver between
v6.5-rc5 and v6.5-rc6. The maximum performance for 'ib_send_bw -F -a' in local loopback mode
dropped from about 1.9GB/sec to 1.1GB/sec between these two tags. I have also measured the performance
of a 6.5 kernel with the 6.4 rxe driver and 6.4 infiniband/core drivers and that also shows the lower
performance so it is not something in the rdma subsystem. (In fact there were no changes in the rxe
driver from 6.5-rc5 to 6.5-rc6.)

If I type 'git log --oneline v6.5-rc6 ^v6.5-rc5' I get about 360 lines but many of them are merge sets
that can contain many patches. Is there a way to list all the patches contained between these two
tags?

Thanks,

Bob



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