Fedora 36 将采用 plocate 替代 mlocate 成为默认的查找索引，据说更快。
而且 Debian 也早采纳了 plocate。

• 官网: https://plocate.sesse.net/
• 代码仓库: https://git.sesse.net/?p=plocate;a=tree

安装

apt show plocate
# Package: plocate
# Version: 1.1.8-2
# Priority: optional
# Section: universe/utils
# Origin: Ubuntu
# Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
# Original-Maintainer: Steinar H. Gunderson <sesse@debian.org>
# Bugs: https://bugs.launchpad.net/ubuntu/+filebug
# Installed-Size: 510 kB
# Depends: libc6 (>= 2.33), libgcc-s1 (>= 3.3.1), libstdc++6 (>= 6), liburing1 (>= 0.7), libzstd1 (>= 1.4.0)
# Suggests: systemd-sysv | powermgmt-base, systemd-sysv | nocache
# Breaks: mlocate
# Replaces: mlocate
# Homepage: https://plocate.sesse.net/
# Task: xubuntu-desktop, ubuntu-budgie-desktop, ubuntu-budgie-desktop-raspi
# Download-Size: 119 kB
# APT-Manual-Installed: yes
# APT-Sources: https://mirrors.cloud.tencent.com/ubuntu impish/universe amd64 Packages
# Description: much faster locate
#  plocate is a locate(1) based on posting lists, giving much faster searches
#  on a much smaller index. It is a drop-in replacement for mlocate in nearly
#  all aspects, and is fast on SSDs and non-SSDs alike.

sudo apt install -y plocate

使用

根据 apt show 信息，plocate 会 break mlocate。
updatedb 命令会改由 plocate 提供。

ll /usr/bin/locate /usr/bin/updatedb /etc/alternatives/locate /etc/alternatives/updatedb
lrwxrwxrwx 1 root root 16 2021-12-15 11:51:56 /etc/alternatives/locate -> /usr/bin/plocate
lrwxrwxrwx 1 root root 26 2021-12-15 11:51:56 /etc/alternatives/updatedb -> /usr/sbin/updatedb.plocate
lrwxrwxrwx 1 root root 24 2021-12-15 11:51:56 /usr/bin/locate -> /etc/alternatives/locate
lrwxrwxrwx 1 root root 26 2021-12-15 11:51:56 /usr/bin/updatedb -> /etc/alternatives/updatedb

根据官网提供的演示数据，其 DB 只有 mlocate 的 40%，查询时间只有 mlocate 的万分之四。

其具体操作和 mlocate 类似：

sudo updatedb

locate go.mod

有没有 2500 倍的提升我不知道，但是感觉好像确实快。挺好！

参考资料与拓展阅读

• OSCHINA, Fedora 36 将使用新的查找索引组件 Plocate