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I tried this patch with a simple benchmark that uses an AF_UNIX stream socket pair to simulate a sendfile() to /dev/null. Throughput goes up by about 7% when sending a large (8GB) memory-resident file.

I tried this patch with a simple benchmark that uses an AF_UNIX stream socket pair to simulate a sendfile() to /dev/null. Throughput goes up by about 1.5% when sending a large (8GB) memory-resident file. Edit: I had previous claimed a larger improvement, but had accidentally been testing with the patch from D11943 applied as well.

I tried this patch with a simple benchmark that uses an AF_UNIX stream socket pair to simulate a sendfile() to /dev/null. Throughput goes up by about 7%1.5% when sending a large (8GB) memory-resident file. Edit: I had previous claimed a larger improvement, but had accidentally been testing with the patch from D11943 applied as well.