Qiang Luo luoq

## create uefi boot to netboot.xyz
efibootmgr --create --disk /dev/nvme0n1p1 --loader /EFI/netboot.xyz/netboot.xyz.efi --label "Netboot.xyz"

## backup_git_repos.sh
#!/bin/bash
set -eu
src_root=$1
dst_root=$2
max_depth=${3:-5}
cd $src_root
for repo in $(find . -maxdepth $max_depth -type d -name .git); do
  repo=$(dirname $repo)
  echo "backup $repo"
  dst_repo=$dst_root/${repo}.git

## performance fee.ipynb

      
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                luoq
                / performance fee.ipynb
            
            
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              August 3, 2018 03:28
            
          
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## README.md

      
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                luoq
                / README.md
            
            
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              November 10, 2017 02:01
            
          
    test pickle for instance method

pickling instance method failed for python2

  
## vw_hash.md

      
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                luoq
                / vw_hash.md
            
            
              Last active
              August 20, 2020 11:34
            
              
                how feature hash is calculated in vw
              
          
    feature hashing in vw

base hash function

Murmur32 hash is implemented in uniform_hash in hash.cc.
It takes a string and a seed and return uint64_t.
There are two hash modes specified by --hash option.
Strings mode (hashstring in parse_primitives.cc)
	#!/bin/bash
	set -eu
	src_root=$1
	dst_root=$2
	max_depth=${3:-5}
	cd $src_root
	for repo in $(find . -maxdepth $max_depth -type d -name .git); do
	repo=$(dirname $repo)
	echo "backup $repo"
	dst_repo=$dst_root/${repo}.git