Russ Cox
Person on 3 sites
Software engineer at Google and a long-time technical lead of the Go programming language; author of plan9port.
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2 channels on ppll (opens ppll.app)
Where public figures publish, and what they are on record saying.
Updated 2026-10-08 -
7 beliefs on korrents (opens korrents.com)
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Floating-point printing and parsing algorithms are converging toward an optimal solution. (opens korrents.com)
“Given the simplicity and speed of the algorithms in this post and the increasingly small deltas between successive algorithms, perhaps we are nearing an optimal solution.”
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Comparing code coverage between passing and failing test runs is a cheap, effective way to localize a bug quickly. (opens korrents.com)
“Differential coverage is cheap to compute and display, and when it's right, it can save a lot of time.”
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Buggy code usually causes outright test failures rather than being silently exercised inside tests that still pass. (opens korrents.com)
“a passing test can still execute buggy code if the bug is data-dependent, or if the test is not sensitive to the specific mistake in the code. But a lot of the time, buggy code only triggers failures.”
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Floating-point printing and parsing algorithms are converging toward an optimal solution. (opens korrents.com)
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5 recommendations on rcmnd (opens rcmnd.app)
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Samsung ML-1750 laser printer (opens rcmnd.app)
“The printer and the scanner both seemed extravagant at the time, but they have been absolute workhorses and well worth the money.”
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Netgear ReadyNAS Duo (opens rcmnd.app)
“The only thing I might replace if I were starting over would be the ReadyNAS box.”
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Lenovo ThinkPad X201s (opens rcmnd.app)
“I recently replaced my X40 with a refurbished Lenovo Thinkpad X201s, which is also small, light, sturdy, and has three mouse buttons.”
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Samsung ML-1750 laser printer (opens rcmnd.app)