lp://staging/ubuntu/lucid-proposed/ureadahead
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- 10. By Tim Gardner
-
Count the number of CPUs and divide buffer_size_kb by the number of CPUs.
Users should watch for instances of "mmiotrace has lost events" in dmesg to make
sure the trace buffers are not too small. The original value for
buffer_size_kb was chosen somewhat arbitrarily. Empirical testing
has shown that its large enough, so we don't actually know where the lower
boundary lies.
-LP: #491943 - 9. By Tim Gardner
-
Restore buffer_size_kb upon exit, but do it _after_
the trace buffer has been read. This frees the memory
consumed by the trace operation (which can be a lot).
-LP: #501715 - 7. By Scott James Remnant (Canonical)
-
Revert previous upload; had forgotten that the sreadahead package
contains all the clean-up stuff so we want to keep it for the
release upgrade after all. - 6. By Scott James Remnant (Canonical)
-
debian/control: drop sreadahead migration package; dist-upgrade users
will have ureadahead installed by the standard meta-packages. - 5. By Scott James Remnant (Canonical)
-
conf/ureadahead
-other. conf: Change from "on mount" to "on mounted",
the former didn't work anyway. - 4. By Scott James Remnant (Canonical)
-
Put an all-important "--" in the dh_auto_configure invocation so that
ureadahead is installed into the right path (/sbin) - 3. By Scott James Remnant (Canonical)
-
* New upstream release:
- Use external libnih* debian/control: Add build-dependency on libnih-dev
* debian/rules: Fix installation of apport hook. - 2. By Scott James Remnant (Canonical)
-
über-readahead is a replacement for sreadahead that should
significantly improve boot performance on rotational hard drives,
especially those that had regressed in performance from jaunty to
karmic.It does this by pre-loading such things as ext2/3/4 inodes and opening
files in as logical order as possible before loading all blocks in one
pass across the disk.On SSD, this behaves much as sreadahead used to, replacing that package
with slightly improved tracing code.This requires the kernel package also found in karmic-proposed.
LP: #432089.
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