File systems

[NTAdmin]

Hi,
I am planning to buy a wl-500g deluxe router and was wondering what file systems does it support? I know here is custom firmware available, which supports ext3, is there something I can do to add xfs or reiserfs support? ext3 us kind of bad for my 120GB hard drive, because it's not recommended to use it on partitions > 6GB, because of decreased performance.

Thanks

[Oleg]

ext3 us kind of bad for my 120GB hard drive, because it's not recommended to use it on partitions > 6GB, because of decreased performance.

Bullshit. ext3 works fine. Especially at wl500g speed and memory.

[NTAdmin]

So you are saying xfs and reiser are worse then ext3? Then why'd hell all are moving to reiser instead of using ext3? Infact reiser4 is considered one of the best fss in the world.
But if the reouter cpu is not too fast, then I guess it makes no big difference, btw at what speed can I transfer files from a HDD with samba and with ftp?

[Oleg]

So you are saying xfs and reiser are worse then ext3?
No, I just said ext3 is fine. Do you see the difference?
Yes, it's not so good for terabytes of space, but it's fine for desktop applications.

[NTAdmin]

Ah, ok, I guess it is fine (compared to crappy fat32, which get's fragmented all the time), for a hdd connected to the router, on a 120GB partition connected to the PC reiser has > 15MB/s difference then ex3 when copying files on the HDD device.
Can you please estimate the speed I will be able to copy files from the router?
Is it less, then the actual throughput of 100Mbps?

Thanks
P.S I am really thankful for all the things you have done, your firmware seems great. I am quite impressed with the functionaity achieved, I am eager to test it.

[Oleg]

Ah, ok, I guess it is fine (compared to crappy fat32, which get's fragmented all the time), for a hdd connected to the router, on a 120GB partition connected to the PC reiser has > 15MB/s difference then ex3 when copying files on the HDD device.
Can you please estimate the speed I will be able to copy files from the router?
Is it less, then the actual throughput of 100Mbps?

Thanks
P.S I am really thankful for all the things you have done, your firmware seems great. I am quite impressed with the functionaity achieved, I am eager to test it.
Have you tried using search? Ok, as 10x times before - 1.3MB/s.

[NTAdmin]

Ok, thanks, one final question, that is confusing for me. Here is my df output:

Filesystem Type Size Used Avail Use% Mounted on
/dev/hda5 reiserfs 4.1G 3.2G 897M 79% /
tmpfs tmpfs 363M 0 363M 0% /dev/shm
/dev/hda7 reiserfs 3.4G 2.3G 1.2G 68% /home
/dev/hda1 ntfs 20G 15G 4.9G 76% /windows/C
/dev/sda1 ext3 113G 33M 107G 1% /media/Maxtor <---- WTF???

And the sda1 drive is the usb 120GB disk, so it being 113GB is ok, but what I don't understand is why it says used 33MB and sais that available is 107 of 113GB?
You seem to be very familiar with ext3, so is this normal? Does the FS itself use that much space(6GB) for it's purposes? I have never used ext3 on partitions larger then 10GB, so I have never seen number like these before.

Thanks for your patience in explaining.

[NTAdmin]

reiser vs ext3. Ok, so I wanted to show you the difference, just so that to confirm my point of view about ext3 on larger partitions.
Here are the 2 screenshots (all on same hardware, same files):
ReiserFS:
http://www.tud.ttu.ee/~t030726/reiserfs.png

and ext3:

http://www.tud.ttu.ee/~t030726/ext3.png

The ReiserFS is slow, because I use a laptop with 4200RPM HDD, so it can be up-to 50MB/s (compared to 60MB/s harware limit on 7200RPM).

And here is the df output on reiser:

Filesystem Type Size Used Avail Use% Mounted on
/dev/hda5 reiserfs 4.1G 3.2G 897M 79% /
tmpfs tmpfs 363M 0 363M 0% /dev/shm
/dev/hda7 reiserfs 3.4G 2.4G 996M 72% /home
/dev/hda1 ntfs 20G 15G 4.9G 76% /windows/C
/dev/sda1 reiserfs 115G 33M 115G 1% /media/Maxtor


So ext3 is kind of not good for my 120GB HDD.

I'm sorry if I said something bad, you probably wouldn't want to help me now, bud is there a way to recompile the kernel with reiser support? I can do it myself, I just need a link to some article to learn how.

Thanks

[NTAdmin]

Actually I have fixed the problems. I needed to remove the reserved space for root and when the fs stopped checking for stupid reserved quota, the speed increased to ~ 25MB/s (reiser was 40.6MB/s), tested with hdparm this time.
This is acceptable, since the router will never output more then 100Mbps anyway.

Thanks

[Oleg]

You seem to be very familiar with ext3, so is this normal?
Every filesystem should have reserved space for root, this is like a requirement for proper functioning.

[Oleg]

reiser vs ext3. Ok, so I wanted to show you the difference, just so that to confirm my point of view about ext3 on larger partitions.
Here are the 2 screenshots (all on same hardware, same files):
ReiserFS:
http://www.tud.ttu.ee/~t030726/reiserfs.png

and ext3:

http://www.tud.ttu.ee/~t030726/ext3.png

So ext3 is kind of not good for my 120GB HDD.


Probably you've to adjust your setup, as I'm getting about 20MB/s with usb 2.0 case and 5400 HDD. Also, hw limits has nothing in common with maximum thruput, which is lower all the time.




I'm sorry if I said something bad, you probably wouldn't want to help me now, bud is there a way to recompile the kernel with reiser support? I can do it myself, I just need a link to some article to learn how.

Recompile firmware on your own. See http://oleg.wl500g.info for details.

[NTAdmin]

Thanks for the info.
The 2MB/s speed problem is a hotplug issue. When I simply plug in the usb, the automounter mounts it and the speed is low, but if I do a manual re-mount the speed is about 25MB/s, which is acceptable in this case.