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@ -563,7 +563,7 @@ resulting images are significantly smaller. Still, `mkdwarfs` is about
**4 times faster** and produces and image that's **12 times smaller** than **4 times faster** and produces and image that's **12 times smaller** than
the SquashFS image. The DwarFS image is only 0.6% of the original file size. the SquashFS image. The DwarFS image is only 0.6% of the original file size.
So why not use `lzma` instead of `zstd` by default? The reason is that `lzma` So, why not use `lzma` instead of `zstd` by default? The reason is that `lzma`
is about an order of magnitude slower to decompress than `zstd`. If you're is about an order of magnitude slower to decompress than `zstd`. If you're
only accessing data on your compressed filesystem occasionally, this might only accessing data on your compressed filesystem occasionally, this might
not be a big deal, but if you use it extensively, `zstd` will result in not be a big deal, but if you use it extensively, `zstd` will result in
@ -733,7 +733,7 @@ Summary
5.85 ± 0.08 times faster than 'squashfs-zstd' 5.85 ± 0.08 times faster than 'squashfs-zstd'
``` ```
So DwarFS is almost six times faster than SquashFS. But what's more, So, DwarFS is almost six times faster than SquashFS. But what's more,
SquashFS also uses significantly more CPU power. However, the numbers SquashFS also uses significantly more CPU power. However, the numbers
shown above for DwarFS obviously don't include the time spent in the shown above for DwarFS obviously don't include the time spent in the
`dwarfs` process, so I repeated the test outside of hyperfine: `dwarfs` process, so I repeated the test outside of hyperfine:
@ -746,7 +746,7 @@ user 0m2.154s
sys 0m1.846s sys 0m1.846s
``` ```
So in total, DwarFS was using 5.7 seconds of CPU time, whereas So, in total, DwarFS was using 5.7 seconds of CPU time, whereas
SquashFS was using 20.2 seconds, almost four times as much. Ignore SquashFS was using 20.2 seconds, almost four times as much. Ignore
the 'real' time, this is only how long it took me to unmount the the 'real' time, this is only how long it took me to unmount the
file system again after mounting it. file system again after mounting it.
@ -988,7 +988,7 @@ user 0m13.234s
sys 0m1.382s sys 0m1.382s
``` ```
So `dwarfsextract` is almost 4 times faster thanks to using multiple So, `dwarfsextract` is almost 4 times faster thanks to using multiple
worker threads for decompression. It's writing about 300 MiB/s in this worker threads for decompression. It's writing about 300 MiB/s in this
example. example.
@ -1118,7 +1118,7 @@ user 714m44.286s
sys 3m6.751s sys 3m6.751s
``` ```
So it's an order of magnitude slower than `mkdwarfs` and uses 14 times So, it's an order of magnitude slower than `mkdwarfs` and uses 14 times
as much CPU resources as `mkdwarfs -l9`. The resulting archive it pretty as much CPU resources as `mkdwarfs -l9`. The resulting archive it pretty
close in size to the default configuration DwarFS image, but it's more close in size to the default configuration DwarFS image, but it's more
than 50% bigger than the image produced by `mkdwarfs -l9`. than 50% bigger than the image produced by `mkdwarfs -l9`.
@ -1174,7 +1174,7 @@ $ ll perl-install.*
-rw-r--r-- 1 mhx users 1016981520 Mar 6 21:12 perl-install.wim -rw-r--r-- 1 mhx users 1016981520 Mar 6 21:12 perl-install.wim
``` ```
So wimlib is definitely much better than squashfs, in terms of both So, wimlib is definitely much better than squashfs, in terms of both
compression ratio and speed. DwarFS is however about 3 times faster to compression ratio and speed. DwarFS is however about 3 times faster to
create the file system and the DwarFS file system less than half the size. create the file system and the DwarFS file system less than half the size.
When switching to LZMA compression, the DwarFS file system is more than When switching to LZMA compression, the DwarFS file system is more than
@ -1332,7 +1332,7 @@ user 201m37.816s
sys 2m15.005s sys 2m15.005s
``` ```
So it processed 21 MiB out of 48 GiB in half an hour, using almost So, it processed 21 MiB out of 48 GiB in half an hour, using almost
twice as much CPU resources as DwarFS for the *whole* file system. twice as much CPU resources as DwarFS for the *whole* file system.
At this point I decided it's likely not worth waiting (presumably) At this point I decided it's likely not worth waiting (presumably)
another month (!) for `mkcromfs` to finish. I double checked that another month (!) for `mkcromfs` to finish. I double checked that
@ -1415,7 +1415,7 @@ user 3m43.324s
sys 0m4.015s sys 0m4.015s
``` ```
So `mkdwarfs` is about 50 times faster than `mkcromfs` and uses 75 times So, `mkdwarfs` is about 50 times faster than `mkcromfs` and uses 75 times
less CPU resources. At the same time, the DwarFS file system is 30% smaller: less CPU resources. At the same time, the DwarFS file system is 30% smaller:
``` ```