On 08/11/2016 07:58 AM, Hannes Reinecke wrote: > On 08/10/2016 06:20 PM, Xose Vazquez Perez wrote:
>> service-time is more advanced, and it works better in asymmetric and >> symmetric(corrected) environments. >> - .selector = "queue-length 0", > I would _not_ do this, unless tested on the real hardware. > Just claiming 'the other one is more advanced' is not enough here. service-time works better in any wild environment, different adapters or different links speeds and any kind of load, aka the Production Environment. I guess that manufacturers' tests are done in ideal conditions(PV=nRT). Anyhow, the default path selector algorithm does not depend, by no means, of any array settings or hardware. It's only related to the Linux host and its environment. How PURE/FlashArray and XtremIO/XtremApp were tested? Is there anything wrong with service-time? -- dm-devel mailing list dm-devel@redhat.com https://www.redhat.com/mailman/listinfo/dm-devel
