Messages in this thread | | | Date | Wed, 11 May 2022 16:25:20 -0700 | From | Jakub Kicinski <> | Subject | Re: [RFC,net-next,x86 0/6] Nontemporal copies in unix socket write path |
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On Tue, 10 May 2022 20:54:21 -0700 Joe Damato wrote: > Initial benchmarks are extremely encouraging. I wrote a simple C program to > benchmark this patchset, the program: > - Creates a unix socket pair > - Forks a child process > - The parent process writes to the unix socket using MSG_NTCOPY - or not - > depending on the command line flags > - The child process uses splice to move the data from the unix socket to > a pipe buffer, followed by a second splice call to move the data from > the pipe buffer to a file descriptor opened on /dev/null. > - taskset is used when launching the benchmark to ensure the parent and > child run on appropriate CPUs for various scenarios
Is there a practical use case?
The patches look like a lot of extra indirect calls.
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