unkstar
unkstar
/ gist:3bb1f3203f3725529ab4
Last active
August 29, 2015 14:17
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| 马岗云浮 | |
| 电信: | |
| [AS4134] -> [AS2914] -> [AS32787] -> [AS27357/AS36459] 20 hops | |
| --- github.com ping statistics --- | |
| 100 packets transmitted, 98 received, 2% packet loss, time 99030ms | |
| rtt min/avg/max/mdev = 343.288/369.634/386.614/9.755 ms | |
| 联通: | |
| [AS17816] -> [AS4837] -> [AS2914] -> [AS32787] -> [AS27357/AS36459] 22 hops | |
| --- github.com ping statistics --- |
unkstar
/ simple_perf.go
Last active
August 29, 2015 14:01
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| package main | |
| import ( | |
| "flag" | |
| "fmt" | |
| "sync" | |
| "sync/atomic" | |
| "time" | |
| "runtime" | |
| "net/http" |
unkstar
/ safari JIT bug
Created
July 26, 2013 16:57
safari bug demo: tested in Safari Version 6.0.5 (8536.30.1)
bad(2,1) shall always return false. But in the buggy version of safari, it will return true from 75 to 95 times it's being called.
on the other hand very very similar version good, behave just as it should.
by warming up the bad function by about 100 times, it will almost behave correct…
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| <html> | |
| <head> | |
| <script type="text/javascript"> | |
| var append = function(text) { | |
| document.body.appendChild(document.createTextNode(text)); | |
| document.body.appendChild(document.createElement("br")); | |
| } | |
| bad = function(lhs, rhs) { | |
| var dist = (rhs - lhs) >>> 0; | |
| return dist < 256; |
unkstar
/ Base.h
Created
April 26, 2012 12:06
— forked from anonymous/Base.h
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| #include <string> | |
| #include <list> | |
| #include <iostream> | |
| class FunctorBase | |
| { | |
| public: | |
| virtual std::string get() = 0; | |
| }; |
unkstar
/ gist:1930211
Created
February 28, 2012 06:33
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| #include "coroutine.h" | |
| #include "deferred.h" | |
| #include <QtGui> | |
| #include "md5.h" | |
| static int ptcc = 0; | |
| struct PromiseTimerCtx | |
| { | |
| HANDLE timer; |