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| author | Borislav Petkov <petkovbb@googlemail.com> | 2008-04-26 19:36:37 +0400 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-26 19:36:37 +0400 |
| commit | 968c49641338f4fb71d35352d49b1d25a68c5e93 (patch) | |
| tree | fbff834006b20bfac4af6dbc70b951a31bc2f3af /include/linux/Kbuild | |
| parent | 9841654949f0a3f1289b6b95b2ab56cd99fb5360 (diff) | |
| download | linux-968c49641338f4fb71d35352d49b1d25a68c5e93.tar.xz | |
ide-cd: remove the internal 64k buffer
This removes the internal ide-cd buffer and falls back to read-ahead block layer
capabilities. Thorough testing (cd burning, dvd read, raw read) gives with the
bufferless mode marginally better performance in addition to simplified code.
bufferless:
dd: reading `/dev/hdc': Input/output error
6238+0 records in
6238+0 records out
204406784 bytes (204 MB) copied, 259.891 s, 787 kB/s
real 4m21.598s
user 0m0.014s
sys 0m0.744s
with the old buffer (2.6.25-rc1):
dd: reading `/dev/hdc': Input/output error
6238+0 records in
6238+0 records out
204406784 bytes (204 MB) copied, 262.893 s, 778 kB/s
real 4m22.938s
user 0m0.009s
sys 0m0.771s
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include/linux/Kbuild')
0 files changed, 0 insertions, 0 deletions