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Add to SafariWhen comparing YUM vs yay, the Slant community recommends yay for most people. In the question“What are the best Linux package managers?” yay is ranked 8th while YUM is ranked 13th. The most important reason people chose yay is:
It's written in Go so it is fairly easy to add features or tweak this amazing tool.
Question Ranking
Pros
Pro Avoids dependency hell
All the metadata for installed software is stored into a XML file. This is used to avoid conflicting dependencies among packages. What's more, YUM also automatically syncs remote metadata to the local client in order to avoid failures if a command is not run at the correct interval.
Pro Simple syntax
Pro Binary delta for faster transfer times
Yum supports Delta RPMs which allow transmitting only the parts of the package that have changed.
Pro Is/was the industry standard
YUM is still widely used in corporate environments.
Pro Provides pre and post install sanity checks
What might be thought of a standard feature, isn't. Thankfully RPM provides both a transaction test and a post install verification to make sure everything installs neatly.
Pro Supports multiple verification methods
Supports verification with GPG and MD5.
Pro Clean and easy to understand
Pro Supports multiple compression methods
Supports gzip, bzip2, lzma, or xz compression.
Pro Allows for complex dependency definitions
Alongside allowing dependency on a certain package, it allows depending on a library, versioned symbol, or a GAC'd Mono assembly.
Pro Easy to add features
It's written in Go so it is fairly easy to add features or tweak this amazing tool.
Pro Intuitive CLI
Yay's commands and output make sense for anyone used to the pacman package manager.
Pro Written in Go
The compiled program is snappy while the source is easy to read.
Pro Available as a precompiled binary
Both yay and yay-bin are in the AUR, the latter of which doesn't require any dependencies or compilation, making installation and updates quick and painless.
Pro Yogurt interactive mode
Write package name without keys [yay <packagename>] to enter interactive mode.
Pro Doesn't rebuild already-installed apps like Trizen
Cons
Con Can be very slow to download headers if not on broadband
Yum can be much slower than other package managers if the internet speed is not at least average to high.
Con Slow (and might be fragile) dependency resolution
YUM dependency resolution is very slow. In addition to it, the people often experiencing very hard dependencies (it might be not a YUM problem).
Con Does fsync often
Like its successor, DNF, YUM does fsync too often. The result is poor YUM and system performance while YUM does its work.
Con Very slow overall
YUM is very slow - beginning with relatively slow startup, extremely slow default plugins, slow dependency resolution, and ending with slow installation of packages.
Con Poor design
YUM is written in Python 2 and people often blaming the quality of YUM's code.
Con Written in Go
Running a Go program requires the Go runtime. Go is also a garbage collected language, so the program isn't as responsive as it could be.
