lkml.org 
[lkml]   [2007]   [Jan]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 0/6] adaptive readahead update
Andrew,

Here're more readahead updates. They go like:

--- broken-out/series 2007-01-05 13:13:19.000000000 +0800
+++ patches/series 2007-01-05 22:11:37.000000000 +0800
@@ -985,13 +985,17 @@
readahead-sysctl-parameters.patch
readahead-sysctl-parameters-use-ctl_unnumbered.patch
readahead-sysctl-parameters-fix.patch
+readahead-sysctl-parameters-set-readahead_hit_rate-1.patch
readahead-min-max-sizes.patch
+readahead-min-max-sizes-remove-get_readahead_bounds.patch
readahead-state-based-method-aging-accounting.patch
readahead-state-based-method-routines.patch
readahead-state-based-method.patch
readahead-context-based-method.patch
readahead-context-based-method-locking-fix.patch
readahead-context-based-method-locking-fix-2.patch
+readahead-context-based-method-update-ra_min.patch
+readahead-context-based-method-remove-readahead_ratio.patch
readahead-initial-method-guiding-sizes.patch
readahead-initial-method-thrashing-guard-size.patch
readahead-initial-method-user-recommended-size.patch
@@ -1001,9 +1005,10 @@
readahead-call-scheme.patch
readahead-call-scheme-ifdef-fix.patch
readahead-call-scheme-build-fix.patch
+readahead-call-scheme-remove-get_readahead_bounds.patch
-readahead-laptop-mode.patch
readahead-loop-case.patch
readahead-nfsd-case.patch
+readahead-nfsd-case-remove-ra_min.patch
readahead-nfsd-case-fix.patch
readahead-nfsd-case-fix-uninitialized-ra_min-ra_max.patch
readahead-turn-on-by-default.patch

Summary of changes
==================
- change default value of readahead_hit_rate to 1
- remove defered readahead for laptop mode
- remove get_readahead_bounds() and update ra_min of the context method
- remove use of readahead_ratio in the context method


readahead-laptop-mode.patch
===========================
Please remove it for now.

It defers readahead when the laptop is spinned down, which may cause unpleasant
delays if the user is watching movie and the media player do not cache enough
data in userland.


readahead-nfsd-case-remove-ra_min.patch
=======================================
Please fold it immediately to avoid a compile error when bisecting.


readahead-insert-cond_resched-calls.patch
readahead-remove-size-limit-on-read_ahead_kb.patch
readahead-remove-size-limit-of-max_sectors_kb-on-read_ahead_kb.patch
====================================================================
It may be better to push them to mainline _before_ the other patches.

They solve some issues on large readahead size.
The main users are currently some laptop mode users.

Regards,
Fengguang Wu
--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-01-06 08:31    [W:0.136 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site