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Re: [Discuss-gnuradio] SCHED_FIFO and NPTL
From: |
Lamar Owen |
Subject: |
Re: [Discuss-gnuradio] SCHED_FIFO and NPTL |
Date: |
Thu, 9 Mar 2006 10:55:55 -0500 |
User-agent: |
KMail/1.9.1 |
On Wednesday 08 March 2006 14:33, Eric Blossom wrote:
> I was burned by ext3 with regard to streaming disk throughput.
> I ended up remounting the relevant filesystem as ext2 to avoid the
> problem. I have no info regarding CPU and/or preemption issues during
> journal posting. If we never go to the disk, it might not matter at
> all.
Our box here is a Dell PowerEdge 2850 with the PCIe PERC 4e/Di U320 hardware
RAID controller. The data drive is a RAID0 of 4 146GB 10K RPM U320 drives,
and sustains, with ext3, over 140MB/s. We have successfully recorded 2 hours
at 32MB/s without any known issues. Need to test further, though.
> I installed the Reiser FS on my new laptop. I'll let you know if I
> see anything hinky. Haven't tried XFS. I suspect it's OK.
> SGI built truely *monstrous* media servers using it.
Be careful which XFS version you use. The 2.6 kernel-supplied XFS code has
some problems, and you really need the latest SGI code instead. The CentOS 4
group is working on an XFS-enabled kernel with the newer code. Not sure
where SuSE and Ubuntu/Debian stand.
--
Lamar Owen
Director of Information Technology
Pisgah Astronomical Research Institute
1 PARI Drive
Rosman, NC 28772
(828)862-5554
www.pari.edu
- Re: [Discuss-gnuradio] Queries regarding FPGA, (continued)
- Re: [Discuss-gnuradio] Queries regarding FPGA, Stephane Fillod, 2006/03/01
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Eric Blossom, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Frank Brickle, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Eric Blossom, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Frank Brickle, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Eric Blossom, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Robert McGwier, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Eric Blossom, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Frank Brickle, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Eric Blossom, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL,
Lamar Owen <=
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Eric Blossom, 2006/03/09
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Stephane Fillod, 2006/03/08
- Re: [Discuss-gnuradio] SCHED_FIFO and NPTL, Eric Blossom, 2006/03/08
Re: [Discuss-gnuradio] Queries regarding FPGA, amit malani, 2006/03/04