start new:
tmux
start new with session name:
tmux new -s myname
Jean-Yves VET jyvet
mdPlusPlus
/ compile_newest_stable_kernel_with_acso_patch.sh
Last active
April 10, 2025 20:00
Download, patch, compile and install the newest stable Linux kernel with the ACS override patch (Ubuntu / Debian)
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/bin/bash | |
| function install_dependencies() { | |
| echo "Installing dependencies..." | |
| sudo apt -qq update | |
| sudo apt -qq install -y curl git wget | |
| # sudo apt -qq install -y bison flex kernel-package libelf-dev libssl-dev | |
| sudo apt -qq install -y bison flex libelf-dev libssl-dev | |
| } |
eshelman
/ latency.txt
Last active
February 22, 2026 10:33
— forked from jboner/latency.txt
HPC-oriented Latency Numbers Every Programmer Should Know
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Latency Comparison Numbers | |
| -------------------------- | |
| L1 cache reference/hit 1.5 ns 4 cycles | |
| Floating-point add/mult/FMA operation 1.5 ns 4 cycles | |
| L2 cache reference/hit 5 ns 12 ~ 17 cycles | |
| Branch mispredict 6 ns 15 ~ 20 cycles | |
| L3 cache hit (unshared cache line) 16 ns 42 cycles | |
| L3 cache hit (shared line in another core) 25 ns 65 cycles | |
| Mutex lock/unlock 25 ns | |
| L3 cache hit (modified in another core) 29 ns 75 cycles |
