search for: spead

...providing storage for our RHEV environment. We've been having issues with inconsistent performance from the VMs depending on which Hypervisor they are running on. I've confirmed throughput to be ~9Gb/s to each of the storage hosts from the hypervisors. I'm getting ~300MB/s disk read spead when our test vm is on the slow Hypervisors and over 500 on the faster ones. The performance doesn't seem to be affected much by the cpu, memory that are in the hypervisors. I have tried a couple of really old boxes and got over 500 MB/s. The common thread seems to be that the poorly perfomi...

Hi there - I wanted to know if anyone has used Rails & PHP on the same production server and whether they''ve experienced any problems. I''m looking to install rails on our production soon, however I would like to know if there are any issues I need to be aware about. Many thanks, Jared.

...V environment. We've been having issues with inconsistent performance > > from the VMs depending on which Hypervisor they are running on. I've > > confirmed throughput to be ~9Gb/s to each of the storage hosts from the > > hypervisors. I'm getting ~300MB/s disk read spead when our test vm is on > > the slow Hypervisors and over 500 on the faster ones. The performance > > doesn't seem to be affected much by the cpu, memory that are in the > > hypervisors. I have tried a couple of really old boxes and got over 500 > > MB/s. The common th...

...Over a gig-e line, we''re seeing ~30 MB/s reads on average - doesn''t seem to matter if we''re doing large numbers of small files or small numbers of large files, the speed seems to top out there. We''ve disabled pre-fetching, which may be having some affect on read speads, but proved necessary due to severe performance issues on database reads with it enabled. (Reading from the DB with pre-fetching enabled was taking 4-5 times as long than with it disabled.) Write speed seems to be fine. Testing is showing ~95 MB/s, which seems pretty decent considering there...

...or our > RHEV environment. We've been having issues with inconsistent performance > from the VMs depending on which Hypervisor they are running on. I've > confirmed throughput to be ~9Gb/s to each of the storage hosts from the > hypervisors. I'm getting ~300MB/s disk read spead when our test vm is on > the slow Hypervisors and over 500 on the faster ones. The performance > doesn't seem to be affected much by the cpu, memory that are in the > hypervisors. I have tried a couple of really old boxes and got over 500 > MB/s. The common thread seems to be tha...

...ng from > 3.98-4.58s. FWIW, these tests are on a Intel P4 Xeon 3.06Ghz machine with > HT enabled. In any case, it appears that we're slower than GCC on this one. what is very funny, that the situation on my AMD is not similar at all to what you state here. On my side tests show GREAT spead up with ackerman, i.e. 2 to 3 times. Sorry, I can't access my linux box now to get concrete values. > If you > wanted to dig into the test to see what is going wrong (is the LLVM code > missing an optimization, or is it bad code generation?), that would be > quite helpful. i wi...

...been having issues with inconsistent >> > performance >> > from the VMs depending on which Hypervisor they are running on. I've >> > confirmed throughput to be ~9Gb/s to each of the storage hosts from the >> > hypervisors. I'm getting ~300MB/s disk read spead when our test vm is >> > on >> > the slow Hypervisors and over 500 on the faster ones. The performance >> > doesn't seem to be affected much by the cpu, memory that are in the >> > hypervisors. I have tried a couple of really old boxes and got over 500 >...

...nconsistent > >> > performance > >> > from the VMs depending on which Hypervisor they are running on. I've > >> > confirmed throughput to be ~9Gb/s to each of the storage hosts from > the > >> > hypervisors. I'm getting ~300MB/s disk read spead when our test vm is > >> > on > >> > the slow Hypervisors and over 500 on the faster ones. The performance > >> > doesn't seem to be affected much by the cpu, memory that are in the > >> > hypervisors. I have tried a couple of really old boxes a...

...>> > performance >> >> > from the VMs depending on which Hypervisor they are running on. I've >> >> > confirmed throughput to be ~9Gb/s to each of the storage hosts from >> the >> >> > hypervisors. I'm getting ~300MB/s disk read spead when our test vm >> is >> >> > on >> >> > the slow Hypervisors and over 500 on the faster ones. The >> performance >> >> > doesn't seem to be affected much by the cpu, memory that are in the >> >> > hypervisors. I have tr...

...> performance > >> > from the VMs depending on which Hypervisor they are running > on.? I've > >> > confirmed throughput to be ~9Gb/s to each of the storage > hosts from the > >> > hypervisors.? I'm getting ~300MB/s disk read spead when our > test vm is > >> > on > >> > the slow Hypervisors and over 500 on the faster ones.? The > performance > >> > doesn't seem to be affected much by the cpu, memory that are > in the > >> > hypervisors.?...

...gt;>> >> > from the VMs depending on which Hypervisor they are running on. >>> I've >>> >> > confirmed throughput to be ~9Gb/s to each of the storage hosts from >>> the >>> >> > hypervisors. I'm getting ~300MB/s disk read spead when our test vm >>> is >>> >> > on >>> >> > the slow Hypervisors and over 500 on the faster ones. The >>> performance >>> >> > doesn't seem to be affected much by the cpu, memory that are in the >>> >> >...

If anyone can assist with this problem you have my great thanks: I am trying to establish and plot confidence intervals on a bootstrapped function. I have a more complicated function that has no problems with determining the confidence intervals using the quantile command. This is outside the bootstrap portion of the code that is working fine it is just determining everything for the more

...high drive >number (typically 9Fh or so); MS-DOS will normally ignore this since it >asks the BIOS how many drives there are and ignores the rest. >Does the error message come from UDMA2.SYS or...? > -hpa yes, it comes from UDMA2.SYS, it does a series of initialisation tests (read spead for example, and VDS). I don't know behaviour when booting to MSDOS on harddisk, only Isolinux --> A: and Isolinux --> Memdisk --> Disk image Bernd http://fdos.org/ripcord/beta9sr1/other/misc/Udma2_16.zip output on screen (sourcecode in UDMA2.ASM, line 855 and 736 ??? ) UDMA2 Disk...

An interesting bug.. It may be more wide-spead than this, and there may be other ways to reproduce it.but this is how I can produce the problem: At the console, I type "iax2 show peer jc" and press tab to auto-complete the peer "jcallen" that is usually registered. But sometimes (perhaps when jcallen is not registered),...

...providing storage for our RHEV environment. We've been having issues with inconsistent performance from the VMs depending on which Hypervisor they are running on. I've confirmed throughput to be ~9Gb/s to each of the storage hosts from the hypervisors. I'm getting ~300MB/s disk read spead when our test vm is on the slow Hypervisors and over 500 on the faster ones. The performance doesn't seem to be affected much by the cpu, memory that are in the hypervisors. I have tried a couple of really old boxes and got over 500 MB/s. The common thread seems to be that the poorly perfomi...

...> > from the VMs depending on which Hypervisor they are running on. >>>> I've >>>> >> > confirmed throughput to be ~9Gb/s to each of the storage hosts >>>> from the >>>> >> > hypervisors. I'm getting ~300MB/s disk read spead when our test >>>> vm is >>>> >> > on >>>> >> > the slow Hypervisors and over 500 on the faster ones. The >>>> performance >>>> >> > doesn't seem to be affected much by the cpu, memory that are in the >&g...

we just purchase new I/O card and like to check I/O performance. for sequence I/O performance test we can use "hdparm -t /dev/xxx" bur for random I/O performance test which Linux command I can use? ** our environment does NOT allow install third party software.. Thanks

On Sat, 19 Jun 2004, [koi8-r] "Valery A.Khamenya[koi8-r] " wrote: > i took a look into LLVM benchmarks from nightly tester and > ran Shootout tests on my own. Below go just few outlines. > > 1. results on my AMD AthlonXP and Xeon used by LLVM > team are different sometime. In particular, both Shootout > and Shootout-C++ show great speed up with LLVM (in >

Dear R Users, I hope that there is someone who has an experience with a problem that I describe below and will help me. I must buy new desktop computer and I'm wondering which processor to choose if my only aim is to speed up R. I would like to reduce a simulation time - sometimes it takes days. I consider buying one of them (I'm working under Win XP 32 bit): 1. Intel Core2 Duo E6700

Hi all i took a look into LLVM benchmarks from nightly tester and ran Shootout tests on my own. Below go just few outlines. 1. results on my AMD AthlonXP and Xeon used by LLVM team are different sometime. In particular, both Shootout and Shootout-C++ show great speed up with LLVM (in comparison to GCC) on ackerman test on my AthlonXP. But here: