On 03/22/2011 05:06 PM, Nicholas A. Bellinger wrote: >>>> I'm also seeing disktest complain on the client about commands taking longer than 120 seconds >>>> on occasion, which may play into the performance issue I mentioned in my previous mail. >>>> >>> >>> Mmmm, please verify with RAMDISK_MCP backends as well, as by default >>> FILEIO has O_SYNC enabled.. This does seem strange for LTP disktest >>> however.. With RAMDISK_MCP I don't see any of the problems seen with RAMDISK_DR. Additionally, disktest is running much snappier. I'm seeing between 30 and 60 MB/sec on the read workload and between 100 and 300 MB/sec on the writes. I'm having some trouble with multiple LUNs, however. Perhaps this is more configuration issues, but if I create a lun_1 directory and link to a second device, the client just sees two devices which seems to be both mapped to the device mapped at lun_0. Thanks, Brian -- Brian King Linux on Power Virtualization IBM Linux Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
