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Grace delay is described as it works: NUM small reads in a row in one direction within a second start the wait, larger reads end it. It saves CPU on connections carrying data in small pieces and caps a connection at one read per DELAY, 16K copying and 64K (the pipe) with splice(); a table gives the caps for 1-10 ms, another the measured gains per client link, and DELAY is to be matched to the clients' speed. It does not help once the CPU is exhausted. The example becomes -g8000,2,2: the old -g8000,3,10 capped copying at 13 Mbit/s. splice() gets measured figures: 3 times the speed at 60-70% less CPU for large transfers on a fast network, within 0-12% for web traffic in the mix over emulated links. -s, the automatic mode, is the default; the paragraph still said -s0 was. splice() is not used where 3proxy has to see the data: while data filters apply, and by services ending or beginning TLS. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> |
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