Latency Numbers Every Programmer Should Know

latency.txt p�5� V �1� V 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

[knjname]

例のアレ

[escape_artist]

引用に便利なレイテンシの値例

[oinume]

Latency一覧

[masa8aurum]

Latency Numbers Every Programmer Should Know / L1 cache reference: 0.5 ns; … Main memory reference: 100 ns; … Read 1 MB sequentially from disk: 20,000,000 ns;

[masterq]

これは便利

[k--kato]

@cero_t 20msです。 Latency Numbers Every Programmer Should Know

[uva]

遅延

[kbkbkbkb1]

遅延のオーダー

[yass]

" Send 1K bytes over 1 Gbps network 10 us 0.01 ms / Round trip within same datacenter 0.5 ms / Read 1 MB sequentially from SSD 1 ms 4X memory "