Originally posted by discordian
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XFS / EXT4 / Btrfs / F2FS / NILFS2 Performance On Linux 5.8
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Originally posted by birdie View Post
ext4 has very powerful file restore utilities unlike XFS which once gets corrupted or a file gets deleted accidentally, you're SOL.
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Any guess to why the COW filesystems are so bad at app startup? I would assume the issue is that need to write to several log/cache files, read performance aint bad, and checksums shouldn't cost that much.
Might make sense to try with
chattr +C /var/log /var/cache /var/tmp /home/$USER/.cache
(or do a strace to detect where most time is lost)
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Originally posted by Almindor View Post
Ext4 is consistently best from my experience. There's something funny here, I suspect Ubuntu patched themselves into a corner.
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Pretty disappointing results, considering that this is the fastest SSD available on the market.
The startup times seem awful considering the hardware bandwidth, response time and IOPS.
It looks to me that maybe the security mitigations wen too far or there are other regressions in he kernel or filesystems.
F2FS looks interesting, but I wonder if it has all the capabilities of EXT4, if one can safely switch to it.
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Originally posted by Vistaus View Post
I thought it was supposed to be slow? Fellow Phoronix members keep saying that ext4 is supposed to be slow because the focus is on stability.
Whenever I switched over from Ext4 to something else I found some "edge case" super-underperformance problem. Postgres would go 10% speed, SQLite would poop out, many small writes during compilation would kill the system or so.
Ext4 is consistently best from my experience. There's something funny here, I suspect Ubuntu patched themselves into a corner.
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