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Date: Sat, 02 Jul 2016 17:23:18 -0700
From: Matthew Macy <mmacy@nextbsd.org>
To: "chromium" <chromium@freebsd.org>
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Subject: chrome spends all its time calling open
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While looking at other issues I tried running truss on chrome at startup and I discovered a certain rather dysfunctional behavior:


lanecrash# grep "close(" chrome.log | wc
 1317903 7905445 68502169
planecrash# wc chrome.log            
 1466068 8798135 78854285 chrome.log

It repeatedly calls close on 1 up to ~128000. System calls aren't expensive per se, but if almost 95% of your system calls are close you're doing something quite wrong.

-M