[NET]: use fget_light() in net/socket.c
Here's an updated copy of the patch to use fget_light in net/socket.c.
Rerunning the tests show a drop of ~80Mbit/s on average, which looks
bad until you see the drop in cpu usage from ~89% to ~82%. That will
get fixed in another patch...
Before: max 8113.70, min 8026.32, avg 8072.34
87380 16384 16384 10.01 8045.55 87.11 87.11 1.774 1.774
87380 16384 16384 10.01 8065.14 90.86 90.86 1.846 1.846
87380 16384 16384 10.00 8077.76 89.85 89.85 1.822 1.822
87380 16384 16384 10.00 8026.32 89.80 89.80 1.833 1.833
87380 16384 16384 10.01 8108.59 89.81 89.81 1.815 1.815
87380 16384 16384 10.01 8034.53 89.01 89.01 1.815 1.815
87380 16384 16384 10.00 8113.70 90.45 90.45 1.827 1.827
87380 16384 16384 10.00 8111.37 89.90 89.90 1.816 1.816
87380 16384 16384 10.01 8077.75 87.96 87.96 1.784 1.784
87380 16384 16384 10.00 8062.70 90.25 90.25 1.834 1.834
After: max 8035.81, min 7963.69, avg 7998.14
87380 16384 16384 10.01 8000.93 82.11 82.11 1.682 1.682
87380 16384 16384 10.01 8016.17 83.67 83.67 1.710 1.710
87380 16384 16384 10.01 7963.69 83.47 83.47 1.717 1.717
87380 16384 16384 10.01 8014.35 81.71 81.71 1.671 1.671
87380 16384 16384 10.00 7967.68 83.41 83.41 1.715 1.715
87380 16384 16384 10.00 7995.22 81.00 81.00 1.660 1.660
87380 16384 16384 10.00 8002.61 83.90 83.90 1.718 1.718
87380 16384 16384 10.00 8035.81 81.71 81.71 1.666 1.666
87380 16384 16384 10.01 8005.36 82.56 82.56 1.690 1.690
87380 16384 16384 10.00 7979.61 82.50 82.50 1.694 1.694
Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed