Comment Comment by xnx This formatting is more intuitive to me. L1 cache reference 2,000,000,000 ops/sec L2 cache reference 333,333,333 ops/sec Branch mispredict 200,000,000 ops/sec Mutex lock/unlock (uncontended) 66,666,667 ops/sec Main memory reference 20,000,000 ops/sec Compress 1K bytes with Snappy 1,000,000 ops/sec Read 4KB from SSD 50,000 ops/sec Round trip within same datacenter 20,000 ops/sec Read 1MB sequentially from memory 15,625 ops/sec Read 1MB over 100 Gbps network 10,000 ops/sec Read 1MB from SSD 1,000 ops/sec Disk seek 200 ops/sec Read 1MB sequentially from disk 100 ops/sec Send packet CA->Netherlands->CA 7 ops/sec parent xnx 10 months ago