search for: 15x

My test setup of 8 x 2G virtual disks under Virtual Box on top of Mac OS X is running nicely! I haven''t lost a *single* byte of data. ;) A. -- Adam Sherman CTO, Versature Corp. Tel: +1.877.498.3772 x113

I have 15x SAS drives in a Dell MD1000 enclosure, attached to an LSI 9200-16e. This has been working well. The system is boothing off of internal drives, on a Dell SAS 6ir. I just tried to add a second storage enclosure, with 15 more SAS drives, and I got a lockup during Loading Kernel. I got the same res...

...nk the symbolic links and everything are set up correctly, because the BLAS itself works: I'm using Dirk Eddelbuettel's gbcd package to benchmark the difference, and I can still run the matrix multiplication benchmarks (I guess crossprod doesn't depend on lapack?), and I'm getting a 15x speedup over the default BLAS with 8 cores used. The problem, though, is that when I try to run anything that depends on lapack--like qr()--I get the following: Error in qr.default(a, LAPACK = TRUE) : lapack routines cannot be loaded In addition: Warning message: In qr.default(a, LAPACK = TRUE) :...

...9;m trying to sketch an LLVM-based implementation of the Extended Linear Scan algorithm, described in this Vivek Sarkar's paper: http://www.cs.rice.edu/~vs3/PDF/cc2007.pdf Sarkar reports that this version of Linear Scan produces better code than graph-coloring regallocs and is also much faster (15x to 68x). I already started work on the implementation of this algorithm and have a few hopefully rather simple questions: 1) What is the easiest way to understand which MBB a given instruction index belongs to? All the required information is available in the MBB2IdxMap of the LiveIntervalAnalysi...

...ch> and Ray Brownrigg <Ray.Brownrigg@mcs.vuw.ac.nz> for responding. I ended up writing C code (and an R interface) to do it, which is about 1000x faster than the naive method! (72s became .09s on a 223 x 520 matrix). I added a running mean function too, which is very simple and is about 15x faster than apply(..., filter, ...). I've packaged the code as <http://cran.r-project.org/src/contrib/Devel/runStat_1.1.tar.gz> The key insight was that it *is* in fact a good idea to calculate the ranks of the 5 data points, because then it is easy to calculate how those ranks *chang...

...lity images, with hardly no blurred areas and JPEG artifacts. It's a pity the real mess around HEVC patent licensing.The advantages of the NHW Project are however that it is royalty-free, and very faster than x265, as I said (many times...) on this list, it is at least 50x faster to encode and 15x faster to decode than x265!... I don't know if I will have time to really work again on the NHW Project, as I will start a new job in September (I am jobless since October 2017) and I would also like to spend these next months on my other project which I really like.I hope that before Septembe...

...hat same ppm image. As a remark, the x265 codec is highly highly optimized, notably SIMD and multithreading, and the NHW Project has absolutely no optimization (pure C unoptimized code).So with the same optimizations as x265 codec (x5), the NHW Project is at least 50x faster to encode and at least 15x faster to decode than x265 codec (HEVC)!!! Any opinion, feedback are very welcome! Many thanks! Cheers, Raphael -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/theora/attachments/20180804/45ade49c/attachment.html>

...stays excellent... I will try to improve the NHW Project so that it stays competitive with HEVC on all type of images at -l13 very high compression, and not on good quality only... but it is not that easy as I want the NHW Project to be very fast, and stay at least 50x faster to encode and at least 15x faster to decode than x265 (optimized HEVC), and also stay royalty-free! More at: http://nhwcodec.blogspot.com/ <https://nhwcodec.blogspot.com/> Any opinion on the NHW Project is very welcome! Many thanks for your time. Cheers, Raphael Canut -------------- next part -------------- An HTML...

...at: http://nhwcodec.blogspot.com/ We can still save 2.5KB per .nhw compressed files. I wanted to correct my last speed measurement, with the same level of optimization, the NHW Project is at least 20x faster to encode (bpgenc -m 0) or at least 52x time faster to encode (bpgenc -m 7) and at least 15x faster to decode than x265 BPG (optimized HEVC). Many thanks and Happy New Year!!! Cheers, Raphael -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/theora/attachments/20190103/966bfb85/attachment.html>

...ata/export on /home app2 - ditto The appropriate conf files are attached. My simple test involves reading an input file and writing it to the Gluster home versus local /tmp. These tests were conducted using standard log files produced by our application. Writing is 75x-ish slower. Reading is 15x-ish slower. Now, obviously, there's some overhead with regards to the Gluster system, and while the overall numbers themselves aren't bad in the real world, I'm wondering what, if any, performance tweaks I could be using to help this out. I don't think a 75x hit for writing a text f...

Hello :-) I have just bought a Pioneer 15x BluRay recorder. I saw something like below in the dmesg, I cannot access video with VLC, should I worry about that? I guess recording files can be done just as for DVD with growisofs? :-) (cd2:ata0:0:1:0): READ DVD STRUCTURE. CDB: ad 0 0 0 0 0 0 1 0 8 0 0 (cd2:ata0:0:1:0): CAM status: SCSI Status...

Hi, I am studying (in a few months I might go on a TV quiz show :-) Rodger's excelent guide and wanted to confirm that all measurements in NUT are in seconds. For example, the Cyber Power System CP1500 AVR UPS returns that the **driver.parameter.pollfreq = 30**. This means that I can (maybe should) adjust the settings within NUT.CONF to match this value. Setting this value to 2 seconds gains

...W tree coding.It is also very fast, for example it is as good or better than Google WebP but a lot faster, currently 3x faster to encode (from .ppm) and 4x faster to decode (to .ppm), and WebP is highly optimized: multithreading, SIMD, so with these same optimizations the NHW Project is at least 12-15x faster to encode and 16-20x faster to decode than WebP!!! More generally, if you want to help and join the NHW Project community, if you want to support and push the NHW Project so that it raises attention of the major companies and players of the image/video compression area, do not hesitate to s...

Dear R developers, The slow performance of serializing to a raw vector on Windows is an issue that has appeared in this list before. It appears to be due to the frequent use of realloc from the resize_buffer method in serialize.c. I suggest a more granular, but still incremental, re-allocation of memory. For example change near the top of resize_buffer to: R_size_t newsize = needed + 65536 -

...an LLVM-based implementation of the Extended > Linear Scan algorithm, described in this Vivek Sarkar's paper: > http://www.cs.rice.edu/~vs3/PDF/cc2007.pdf > Sarkar reports that this version of Linear Scan produces better code > than graph-coloring regallocs and is also much faster (15x to 68x). > > I already started work on the implementation of this algorithm and > have > a few hopefully rather simple questions: > > 1) What is the easiest way to understand which MBB a given instruction > index belongs to? All the required information is available in the &g...

Hello, For those interested, I have added a -l8 "very high compression" setting to the NHW Project. I have added an experimental processing to remove details and preserve neatness.I have also now a fast estimation of entropy of wavelet coefficients and I use it accordingly to the image complexity but it is a very first version... With these new processings, the entropy coding schemes

...each other. Besides I am doing the migration right now to another host. > > What's running in the VM? Mostly RHEL6/Centos6 VMs. But there are some windows systems too. This system was handling most of the CipherShed.org Jenkins CI farm. I can say the resources are oversubscribed by a 15x. But the system runs at below 0.10 at any random time. Thanks for the thoughs on this. -Jason -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - -...

Hi all, I know this is a little off topic (although it might not be because I'm sure there's a solution involving Samba!)... but I hope one of you fine people can advise me on the best approach to achieving an integrated directory supporting Unix/Linux as a first class citizen, storing autofs maps, as well as uid, gid and home folders for each user... and how would that be managed. I see

> -----Original Message----- > From: Chris Murphy > Sent: Tuesday, February 17, 2015 20:48 > > On Tue, Feb 17, 2015 at 7:54 AM, Jason Pyeron wrote: > >> I'd post the entire dmesg somewhere > > > > http://client.pdinc.us/panic-341e97c30b5a4cb774942bae32d3f163.log > > At least part of the problem happens before this log starts. Feb 15 23:41:19

Well this is a new one.... Illumos/Openindiana let me add a device as a hot spare that evidently has a different sector alignment than all of the other drives in the array. So now I''m at the point that I /need/ a hot spare and it doesn''t look like I have it. And, worse, the other spares I have are all the same model as said hot spare. Is there anything I can do with this or