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Lukas Rytz lrytz

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@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 — forked from jboner/latency.txt
Latency numbers every programmer should know
View latency.markdown

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns  = 250 µs
@tinkerware
tinkerware / hsdis-elcapitan.sh
Last active Jul 19, 2020
Build hsdis for JDK 1.8u92 on El Capitan
View hsdis-elcapitan.sh
# You will need Mercurial; get it with `brew install hg`.
hg clone http://hg.openjdk.java.net/jdk8u/jdk8u
cd jdk8u
hg update jdk8u92-b14
chmod +x ./get_source.sh; ./get_source.sh
cd hotspot/src/share/tools/hsdis
wget http://ftp.heanet.ie/mirrors/gnu/binutils/binutils-2.26.tar.gz
tar -xzf binutils-2.26.tar.gz
make BINUTILS=binutils-2.26 ARCH=amd64