You should able to compare the hash version vs non hash version by using the "-o index" flag mounting a new ext3 file system. First mount ext3 without "-o index", create a lot of file, delete it, record the time. Then mount ext3 with "-o index", do the same thing. You should able to see the different. Well. I use debugfs to see a directory is hash or not. Using the dump command to dump the directory file to a normal file. If a directory is hashed, you can see some binary block without filename in it. On Fri, 23 Aug 2002, Carles Xavier Munyoz Baldó wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi, > I have applied the patch you indicated me to my kernel. Compiled it with > support for the ext3 htree indexed directory and boot the computer with the > new kernel. > > I have build a very simple script to test the speed differences between a non > indexed ext3 directory and an indexed one. At the end of this email is the > script source code. > > How you told to me, when I create a new directory it will be by default > indexed if superates the block size. > I have run the script to create 10000 files over a newly created directory > (indexed directory) and over an existing directory (no indexed directory). > > Indexed directory results: > Fri Aug 23 13:27:23 CEST 2002 > real 1m17.092s > user 0m23.260s > sys 0m52.250s > Fri Aug 23 13:28:40 CEST 2002 > > No indexed directory results > Fri Aug 23 13:29:24 CEST 2002 > real 1m18.658s > user 0m23.370s > sys 0m48.200s > Fri Aug 23 13:30:43 CEST 2002 > > But this is not the expected result. The indexed directory must be more quick. > The output of the lsattr command over the newly created directory is: > - --------------- ./test > No flag indicating that this is an indexed directory. > > I believe that I'm doing something bad. > How may I know if the kernel I have build really has htree support ? > What am I doing bad ? > > > mk_file_test.sh > ########################################## > if [ -z "$1" ]; then > echo "USAGE $0 last_directory_number" > exit 0 > fi > > N=0 > date > time while [ 1 ]; do > > $N > if [ "$N" = "$1" ]; then > break > fi > N=`expr $N + 1` > done > echo > date > ########################################## > > Greetings. > - --- > Carles Xavier Munyoz Baldó > carles@descom.es > Descom Consulting > Telf: +34 965861024 > Fax: +34 965861024 > http://www.descom.es/ > - --- > -----BEGIN PGP SIGNATURE----- > Version: PGP 6.5.8 > > iQA/AwUBPWYf5jvYAf7VZNaaEQL+EwCg6el6Ljy0WYbL0YU0T5nrzqmTVYcAmwVE > cND3oRZ18nUP3QrRK1yh5nNW > =vDIm > -----END PGP SIGNATURE----- > > > > _______________________________________________ > > Ext3-users@redhat.com > https://listman.redhat.com/mailman/listinfo/ext3-users >
