Latency

100 ps 1 ns 10 ns 100 ns 1 µs 10 µs 100 µs 1 ms 10 ms 100 ms 1 s CPU Clock Cycle (1-1) L1 cache (4-4) L2 cache (12-12) Branch misprediction (15-15) Mutex lock (20-125) malloc (1 KB) (43-271) page copy (768-768) win mutex lock (9801-9801) compress 1K (2400-15000) Gigabit ethernet (8000-50000) Context switch (30000-38400) SSD access Read 1MB from memory Data centre network Read 1MB from SSD Disk seek (10,000 RPM) Disk seek (7,200 RPM) Disk seek (5,400 RPM) Network Latency DNS latency

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