similar to: Computational complexity vs mode (bit-rate)

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