On 5/24/07, Nitin Gupta <[email protected]> wrote:
On 5/23/07, Bret Towe <[email protected]> wrote:
> On 5/23/07, Nitin Gupta <[email protected]> wrote:
> > For now, tested on x86 only.
>
> If you have a program to test this I can run it on an amd64 and a g4 ppc
>
Attached is the kernel module (compress-test) to test this LZO code.
Just compile this module against 2.6.22-rc2 with this LZO patch. Then
testing can be done as:
1- Mount DebugFS somewhere e.g:
mkdir /debug; mount -t debugfs debugfs /debug
2- Load the module and do:
cat /path/to/some_file > /debug/compress_test/compress
(/var/log/messages should show that compression was successful)
3- Then decompress this file as:
cat /debug/compress_test/decompress > /tmp/t
(/var/log/messages should show that decompression was successful)
4- For extra verification do:
diff /tmp/t /path/to/some_file -- O/P must be empty
Thanks!
Nitin
the test worked fine on amd64
from dmesg:
LZO compress successful: orig_size=17448, comp_size=8183
LZO decompress successful: decomp_size=17448
and input and output files I gave it:
sha1sum test-input output
2221c586e3eb869af7f4333d4f56b441b9aa8414 test-input
2221c586e3eb869af7f4333d4f56b441b9aa8414 output
(will be giving the ppc box the same file to test btw when I get to it)
and I don't know if it matters much but I tried feeding it a 260k file
and it didn't like it
cat /usr/bin/yelp > /debug/compress_test/compress
cat: write error: No space left on device
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