ureadahead is the boot pre-caching system. It dramatically increases boot speed. ureadahead only needs to run when boot changes are made or its files are deleted.

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How to check if ureadahead functioning

I got spinning 5400 rpm 1Gb drive. Booting takes 69 seconds (is it slow?) and /var/lib/ureadahead contains empty directory debugfs. That is why I wonder if ureadahead does its job. /var directory ...
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Cannot purge roundup

I was trying to purge roundup, and aptitude has output the following error lines: update-rc.d: /etc/init.d/roundup exists during rc.d purge (use -f to force) dpkg: error processing roundup (--purge): ...
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Ureadahead slows down boot process on Ubuntu 12.04

I'm using Ubuntu 12.04 64bit installed on a WD Velociraptor (10.000 rpm) hard disk. I'm not using Wubi, it's a clear install. I think that "adding swap" procedure on boot takes too long. At first I ...
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Do e4rat and ureadahead have the same purpose?

I have used e4rat before to speed up Ubuntu. My understanding of it is that it moves files around on the disk to speed up boot times. However, I am also under the impression that ureadahead fulfills ...
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Ureadahead not working on ubuntu 12.04lts [closed]

I discovered using bootchart that my ureadahead isn't working on ubuntu 12.04lts on a dell inspiron 1545, anybody have any suggestions?
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973 views

Ureadahead - how to clear it's cache?

I am using Xubuntu 11.10 on old laptop with Pentium M and 1GB RAM. Please tell me, how to clear ureadahead cache, so I can build an "index" of files again, I would like to improve my system boot time, ...
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Possible to use ureadahead to cache frequently used programs?

EDIT I kinda answered my question with the help of this. The only question remaining is how to make the changes permanently stay in the pack-file and not be lost on reprofile. I'll leave the question ...