Extraction of tar.gz file takes too long

[shenghuang147]

Device Model: XiaoMi 10 Ultra
Android Version: 10 QKQ1.200419.002
MIUI Version: xiaomi.eu 12.0.10
MaterialFiles Version: 1.7.2 (37)
Source: F-Droid

I compressed all font files from the Fonts file of Windows 11 21H2 into Fonts.tar.gz , which contains a total of 336 font files

I found that MaterialFiles takes 5 minutes to fully extract this file, while using tar -zxf Fonts.tar.gz in termux only takes 3.3 seconds

.../Fonts $ time tar -zxf ../Download/Fonts.tar.gz

real    0m3.300s
user    0m2.785s
sys     0m0.482s

start: 00:55:40

end: 01:00:37

[zhanghai]

How large is the tar.gz file itself? My suspicion is that the decompression of every single file requires reading the archive from the beginning again. Not sure if this can be optimized easily.

[shenghuang147]

How large is the tar.gz file itself? My suspicion is that the decompression of every single file requires reading the archive from the beginning again. Not sure if this can be optimized easily.

only 191MB

[zhanghai]

Then it may just be that reason, decompressing roughly 300 * 100 MB = 30 GB of data

[Feuerswut]

Yeah, have this issue as well, depends on library implementation. maybe the extract all specifically should be optimised.