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Jonathan Clark jhclark

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jhclark / gist:3077255
Created Jul 9, 2012 — forked from palexander/gist:2975305
Connecting to a remote mosh server where mosh was installed in ~/prefix
View gist:3077255
mosh --server="LD_LIBRARY_PATH=~/prefix/lib ~/prefix/bin/mosh-server"
jhclark / latency.txt
Created May 31, 2012 — forked from jboner/latency.txt
Latency numbers every programmer should know
View latency.txt
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
Send 1K bytes over 1 Gbps network 10,000 ns 0.01 ms
Read 1 MB sequentially from memory 250,000 ns 0.25 ms
Round trip within same datacenter 500,000 ns 0.5 ms
Read 1 MB sequentially from SSD 1,000,000 ns 1 ms 4X memory
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