Displaying 20 results from an estimated 9000 matches similar to: "Computational complexity vs mode (bit-rate)"
2017 Nov 16
0
xfs_rename error and brick offline
On Thu, Nov 16, 2017 at 6:23 AM, Paul <flypen at gmail.com> wrote:
> Hi,
>
> I have a 5-nodes GlusterFS cluster with Distributed-Replicate. There are
> 180 bricks in total. The OS is CentOS6.5, and GlusterFS is 3.11.0. I find
> many bricks are offline when we generate some empty files and rename them.
> I see xfs call trace in every node.
>
> For example,
> Nov 16
2017 Nov 16
2
xfs_rename error and brick offline
Hi,
I have a 5-nodes GlusterFS cluster with Distributed-Replicate. There are
180 bricks in total. The OS is CentOS6.5, and GlusterFS is 3.11.0. I find
many bricks are offline when we generate some empty files and rename them.
I see xfs call trace in every node.
For example,
Nov 16 11:15:12 node10 kernel: XFS (rdc00d28p2): Internal error
xfs_trans_cancel at line 1948 of file fs/xfs/xfs_trans.c.
2009 Feb 04
0
[LLVMdev] -msse3 can degrade performance
On Feb 2, 2009, at 3:00 PM, Jon Harrop wrote:
> On Monday 02 February 2009 20:37:47 you wrote:
>> On Feb 2, 2009, at 12:39 PM, Jon Harrop wrote:
>>> On Monday 02 February 2009 06:10:26 Chris Lattner wrote:
>>>> I'm seeing exactly identical .s files with -msse2 and -msse3 on the
>>>> scimark version I have. Can you please send the output of:
2009 Jan 31
1
[LLVMdev] -msse3 can degrade performance
On Saturday 31 January 2009 03:42:04 Eli Friedman wrote:
> On Fri, Jan 30, 2009 at 5:43 PM, Jon Harrop <jon at ffconsultancy.com> wrote:
> > I just remembered an anomalous result that I stumbled upon whilst
> > tweaking the command-line options to llvm-gcc. Specifically, the -msse3
> > flag
>
> The -msse3 flag? Does the -msse2 flag have a similar effect?
Yes:
$
2009 Jan 31
2
[LLVMdev] -msse3 can degrade performance
I just remembered an anomalous result that I stumbled upon whilst tweaking the
command-line options to llvm-gcc. Specifically, the -msse3 flag does a great
job improving the performance of floating point intensive code on the
SciMark2 benchmark but it also degrades the performance of the int-intensive
Monte Carlo part of the test:
$ llvm-gcc -Wall -lm -O3 *.c -o scimark2
$ ./scimark2
Using
2007 May 15
0
draft-ietf-avt-rtp-speex-01.txt
Here my comments:
Page 3:
To be compliant with this specification, implementations MUST support
8 kHz sampling rate (narrowband)" and SHOULD support 8 kbps bitrate.
The sampling rate MUST be 8, 16 or 32 kHz.
There is a type above after (narrowband), there is a " extra character.
I don't understand what is the motivation to specify "SHOULD support 8
kbps
2004 Aug 06
0
Re: Some simple questions
> I'm being PHBed into a VOIP project, and Speex sprang to mind.
> Bandwidth is
> going to be a fairly serious issue for us. With regards to a Speex
> enc/decoder, I was wondering: Rick Kane and David Siebert have already
> asked
> about this, but seem to have gotten very different responses - the
> former a
> call to arms, and the latter a "well, if you do it,
2007 May 16
0
draft-ietf-avt-rtp-speex-01.txt
comment inline.
On Wed, 16 May 2007, Jean-Marc Valin wrote:
>> Page 3:
>>
>> To be compliant with this specification, implementations MUST support
>> 8 kHz sampling rate (narrowband)" and SHOULD support 8 kbps bitrate.
>> The sampling rate MUST be 8, 16 or 32 kHz.
>>
>> There is a type above after (narrowband), there is a " extra
2010 Apr 15
0
[LLVMdev] darwin dragon-egg build issues
Duncan,
Do a quick check here on x86_64-apple-darwin10
with svn llvm and svn dragon-egg against release gcc 4.5.0,
the results from the himenoBMTxpa benchmark compiled at -O3
look pretty good. With stock gcc-4.5.0, we get...
Grid-size = M
mimax = 128 mjmax = 128 mkmax = 256
imax = 127 jmax = 127 kmax =255
Start rehearsal measurement process.
Measure the performance in 3 times.
MFLOPS:
2007 Aug 07
2
speex compression rate
I want to know speex compression rate. On the speex website,it says" Speex
is based on CELP and is designed to compress voice at bitrates ranging from
2 to 44 kbps." Is the original voice at bitrates raning from 2 to 44 kbps,or
the compressed voice at bits ranging from 2 to 44 kbps? what is the maxmium
compression rate?
Thanks a lot!
Weiqin Bao
-------------- next part --------------
An
2006 Sep 27
1
HTB root rate allowing to much of a burst
Please see below
Jon Flechsenhaar
Boeing WNW Team
Network Services
(714)-762-1231
202-E7
-----Original Message-----
From: Flechsenhaar, Jon J
Sent: Wednesday, September 27, 2006 10:30 AM
To: lartc@mailman.ds9a.nl
Subject: FW: [LARTC] 2.6.14 - HTB/SFQ QoS broken?
Please see below
Jon Flechsenhaar
Boeing WNW Team
Network Services
(714)-762-1231
202-E7
-----Original Message-----
From:
2002 Jul 25
3
Is there an oggenc low bit rate HOWTO?
First let me say that I was absolutely astounded at the sound quality
when using oggenc at q = -1 (around 50 kbps). So much so, that I'm
anxious to try some of the lower bit rates that were mentioned in the
announcement for 1.0:
... audio and music at fixed and variable bitrates from 16 to 128
kbps/channel.
But I am having trouble finding how to use either oggdrop or oggenc to
get these
2005 Dec 09
0
RE: nodebytes and leafwords
hi kuhlen,
what you said is correct. i am talking about how
you are going to arrange these codewords into an
array, i.e. in the function _make_decode_table.
there he uses node bytes and leaf words for memory
management. i got a 24 bit platform. so if i assume
that max. codeword length that could be possible as
24 bits can i allocate a memory of (2 * used entries - 2),
to arrange the whole tree in
2009 Apr 24
2
low data rate codecs
Hi,
I've been testing out the speex narrowband codec at low data rates
(using linphone and Counterpath's Eyebeam). I'm finding that at data
rates of ~25 kbps, the quality of the voice call is very poor. I know
speex is supposed to work at much lower data rates (~2 kbps). Has
anyone verified that speex will produce reasonable quality at low data
rates? Are there any existing
2006 Jun 19
0
codec at very low bit rate (2 kbps)
I'm not sure, but I think that Microsoft have the license now.. anyone know if there is the source code to download? Or others codecs.. thank you very much
---------- Original Message ----------------------------------
From: "John Miles" <jmiles@pop.net>
Date: Mon, 19 Jun 2006 10:15:59 -0700
>Do a search on "Voxware MetaVoice". I'm not sure who licenses
2007 May 16
2
draft-ietf-avt-rtp-speex-01.txt
> Page 3:
>
> To be compliant with this specification, implementations MUST support
> 8 kHz sampling rate (narrowband)" and SHOULD support 8 kbps bitrate.
> The sampling rate MUST be 8, 16 or 32 kHz.
>
> There is a type above after (narrowband), there is a " extra character.
>
> I don't understand what is the motivation to specify "SHOULD
2001 Sep 23
1
low sampling rate
Hello,
is somebody working on a good low-sampling rate / low-bitrate mode?
I encoded today a mono/16KHz/16bit WAV (a TV-talkshow), using OggDrop.
The quality of the '64kbps' mode was unacceptable, so I had to use
'80kbps' mode. The bitrate averages around 42 kbps, which I found a
bit high for this quality. In your opinion, what bitrate should I
expect as Vorbis matures? 24 kbps?
2005 Jan 03
2
Speex codec for 8Kbps setting ?
Hi,
I am looking how to setup speex codec in codecs.conf for 8 Kbps and 6 Kbps.
In config file are many parameters for setting.
I don't know what is need to change for narrowbad like 8 Kbps and 6 kbps.
Any suggestion?
[speex]
;0-10
quality => 4
;0-10
complexity => 4
; true / false
enhancement => true
; true / false
vad => false
; true / false
vbr => false
; 0 = off, otherwise,
2004 Aug 06
2
Complexity vs BitRate
Jean-Marc and others,
We are using Speex inside our Video Conferencing application and have some
questions about the trade-off of complexity vs bitrate. A little background
information is needed:
1. For us the actual bit-rate isn't that big a deal. Speex running at
14kbps or 8 kbps is minor compared to the video traffic running at 128, 256
or 384 kbps.
2. We care a little about
2015 Feb 18
2
[LLVMdev] [cfe-dev] [3.6 Release] RC3 has been tagged
I finally got around to testing this on a Bloomfield processor (Early
2009 MacPro 2x2.66 GHz dual-quad core) and the regressions from
http://llvm.org/bugs/show_bug.cgi?id=22589 are even more severe. For
10 runs of scimark2_1c built with "-O3 -march=native"...
llvm 3.5.1 1204.16+/-2.66 Mflops
3.6 branch 866.49+/-1.26 Mflops
Do you seriously want to ship with a 39% performance