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Alan McKinnon wrote: |
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> On Friday 26 December 2008 21:49:02 Nikos Chantziaras wrote: |
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> |
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>> OK, I once again verified that fragmentation seems to be a big issue |
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>> even on Linux. I just migrated to ext4, and in order to do that I had |
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>> to rsync, format and rsync back. The result is similar to the last time |
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>> I did this (over 8 months ago): |
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>> |
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>> emerge --sync takes 15 seconds (at least 3 minutes yesterday) |
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>> update-eix takes 2 seconds (20 seconds yesterday) |
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>> |
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>> And I don't believe it's due to ext4. It's a nice speed-up from ext3, |
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>> but not THAT nice. |
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> |
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> Um, did it occur to you that after you emerge --sync'ed yesterday and ran |
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> update-eix that your portage tree is now very up to date and your eix cache |
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> is hot? |
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> |
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> Therefore successive runs will naturally be much quicker? And that yesterday |
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> was xmas day, a day most likely to involve very few if any portage updates? |
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> Or that emerge --sync could easily speed up simply because you had more |
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> bandwidth? |
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> |
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> Your speed-ups likely have very little to do with your filesystem. |
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|
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Well, instead of "yesterday" let's just say "the past 5 months". I |
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already did the rsync/format thing a few times over the last years, and |
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the results are always the same: very fast filesystem for about a month, |
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then it starts getting slower over time. |
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