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@yociya
yociya / amazon-history.js
Last active June 24, 2023 23:33
Amazonの注文履歴を年毎に集計して出力します 利用額 / 注文件数 / 最高額(1注文での) 使い方はコメントを参照
var historyUrl = 'https://www.amazon.co.jp/gp/css/order-history?orderFilter=year-$year$&startIndex=$index$';
function beforeSendHook(xhr){
xhr.setRequestHeader('X-Requested-With'
, {
toString: function(){
return '';
}
}
);
@jboner
jboner / latency.txt
Last active May 3, 2024 15:17
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD