Re: [dm-devel] Announcement: STEC EnhanceIO SSD caching software for Linux kernel

2013-01-18 Thread Jason Warr
On 01/18/2013 11:44 AM, Amit Kale wrote: >> As much as I dislike Oracle that is one of my primary applications. I >> > am attempting to get one of my customers to setup an Oracle instance >> > that is modular in that I can move the storage around to fit a >> > particular hardware setup and have a

Re: [dm-devel] Announcement: STEC EnhanceIO SSD caching software for Linux kernel

2013-01-18 Thread Jason Warr
On 01/18/2013 10:11 AM, thorn...@redhat.com wrote: > On Fri, Jan 18, 2013 at 09:56:19AM -0600, Jason Warr wrote: >> If I can help test and benchmark all three of these solutions please >> ask. I have allot of hardware resources available to me and perhaps I >> can add va

Re: [dm-devel] Announcement: STEC EnhanceIO SSD caching software for Linux kernel

2013-01-18 Thread Jason Warr
On 01/18/2013 03:08 AM, Amit Kale wrote: >> > Can you explain what you mean by that in a little more detail? > Let's say latency of a block device is 10ms for 4kB requests. With single > threaded IO, the throughput will be 4kB/10ms = 400kB/s. If the device is > capable of more throughput, a mult

Re: [dm-devel] Announcement: STEC EnhanceIO SSD caching software for Linux kernel

2013-01-17 Thread Jason Warr
On 01/17/2013 11:53 AM, Amit Kale wrote: >>> 9. Performance - Throughput is generally most important. Latency is >> > also one more performance comparison point. Performance under >> > different load classes can be measured. >> > >> > I think latency is more important than throughput. Spin