![]() ![]() Quick work! The fix is in 1903 (back ported) and in 2004. Update, April 23, 2019: Microsoft received the initial “anomaly” report on the 15th, the repro steps on the 21st, and announced a fix today. unit_tests were taking 618 seconds on Win10, but just 125 seconds on Win7. Vivaldi had reported “ Unit test performance much worse on Win10 than Win7”. So it was when I returned from vacation to find that I’d been CCed on an interesting looking bug. I often find odd performance issues all on my own, but sometimes they are given to me. Only Chromium’s tests were affected, and that slowdown has been 100% mitigated.ĬFG ended up being a big part of this issue, and eight months earlier I had hit a completely unrelated CFG problem, written up here. Note that, despite breathless and click-baity claims to the contrary, the performance of Chrome and Chromium was never affected by this bug. O(n^2) algorithms that should be linear are the best. B) No, I can make it as *slow* as you want.A) You mean you can make it as fast as I want?.A) How long does CreateProcess take on Windows?.Windows 7: Sheesh, I sure am slow at creating processes.So many possible introductions to this one: ![]()
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