2003-09-17 15:21:27

by Lever, Charles

[permalink] [raw]
Subject: RE: remounting with a different blocksize

hi amir-

using "rsize=3D8192" means the client *can* use 8KB reads,
it doesn't mean that it *always* will. there are a variety
of reasons the client might choose 4KB reads even though
it could send larger ones.

can you describe your workload?

> -----Original Message-----
> From: Amir Hermelin [mailto:[email protected]]
> Sent: Wednesday, September 17, 2003 2:45 AM
> To: [email protected]
> Subject: [NFS] remounting with a different blocksize
>=20
>=20
> Hi,
> I'm using RH Linux 2.4.20 on both machines. When I first=20
> mount one of the
> machines with a 4k read/write blocksize, the READ requests=20
> are 4K bytes.
> However, when I umount and then mount again with read/write=20
> blocksize of 8K,
> the READ requests are still 4K bytes.
>=20
> Any ideas on how I can properly change the blocksizes?
>=20
> Thanks,
> Amir.
>=20
>=20
>=20
>=20
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> NFS maillist - [email protected]
> https://lists.sourceforge.net/lists/listinfo/nfs
>=20


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2003-09-18 06:20:08

by Amir Hermelin

[permalink] [raw]
Subject: RE: remounting with a different blocksize

I'm really only running a small and specific number of tests, one READ =
at a
time, files ranging from 8K to 256MB. Is there any place I can read =
about
the reasons why my client (Linux 2.4) isn't using the blocksize I need?

Thanks,
Amir.



-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Lever, Charles
Sent: =E3 17 =F1=F4=E8=EE=E1=F8 2003 17:21
To: Amir Hermelin
Cc: [email protected]
Subject: RE: [NFS] remounting with a different blocksize


hi amir-

using "rsize=3D8192" means the client *can* use 8KB reads,
it doesn't mean that it *always* will. there are a variety
of reasons the client might choose 4KB reads even though
it could send larger ones.

can you describe your workload?

> -----Original Message-----
> From: Amir Hermelin [mailto:[email protected]]
> Sent: Wednesday, September 17, 2003 2:45 AM
> To: [email protected]
> Subject: [NFS] remounting with a different blocksize
>=20
>=20
> Hi,
> I'm using RH Linux 2.4.20 on both machines. When I first
> mount one of the
> machines with a 4k read/write blocksize, the READ requests=20
> are 4K bytes.
> However, when I umount and then mount again with read/write=20
> blocksize of 8K,
> the READ requests are still 4K bytes.
>=20
> Any ideas on how I can properly change the blocksizes?
>=20
> Thanks,
> Amir.
>=20
>=20
>=20
>=20
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf=20
> _______________________________________________
> NFS maillist - [email protected]=20
> https://lists.sourceforge.net/lists/listinfo/nfs
>=20


-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf _______________________________________________
NFS maillist - [email protected]
https://lists.sourceforge.net/lists/listinfo/nfs




-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
NFS maillist - [email protected]
https://lists.sourceforge.net/lists/listinfo/nfs