Shulou(Shulou.com)06/03 Report--

1.2 correlation and comparison of IO performance of each core equipment of computer

Cache L1 L2 L3: delay: 0.5-15ns bandwidth: 20-60GB/s

Memory: latency: 30-100ns bandwidth: 2-12GB/s

SSD hard disk: delay: 10us-1ms bandwidth: 50MB-2GB/s

Ordinary hard disk: delay: 5-20ms bandwidth: 50-200MB/s

Nic: delay: 100us-1ms bandwidth: 10M-10GB/s

Most of the work of the operation and maintenance staff is to find ways to put the data in memory as far as possible to improve the access speed of users.

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