Brian A. Seklecki wrote: >> This does not chive with our most recent performance test. On an R900 > > Do tell. Post your results bonnie++ results somewhere? bon_csv2txt(1) or > html > > Check the list archives. Most people (stock kernels, default sysctls) are > stuck at 150mbps reads. Who knows on writes; they're probably still > waiting for the test to complete; just a skeleton at the terminal.
I've been doing bonnie++ on most every box that comes in our area for several years. You can see the summary at http://www.hps.com/~tpg/notebook/bonnie.php I have not been careful (nor interested in being careful) to be sure all things are equal. I was just interested in approximate performance. Nothing is ever optimized. We use defaults for everything - kernel, PERC card, BIOS etc. A colleague was interested in SERIOUS performance tests. I don't know exactly what he did, but I suspect it was probably some variation on a C++ program that was highly optimized to write data. He told me he got 400MBps. I don't know more details other than this was a PERC6E and a Sun J4400 disk array. >> with a PERC6E using RAID6 we measured write performance at 400MB/sec. >> All RAID values use the default for the card. Array is a Sun J4400. _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
