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@jordelver
jordelver / gist:4594114
Created January 22, 2013 12:04
Git - Delete multiple remote branches

Git - Delete multiple remote branches

Delete all remote branches matching hotfix

git branch -r | grep hotfix | sed 's/origin\///' | xargs -I {} git push origin :{}
@jboner
jboner / latency.txt
Last active June 19, 2024 05:25
Latency Numbers Every Programmer Should Know
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 ~1GB/sec SSD