Re: [PATCH v2] DAX: enable iostat for read/write

2016-10-17 Thread Kani, Toshimitsu
On Mon, 2016-10-17 at 11:29 -0600, Ross Zwisler wrote: > On Mon, Oct 17, 2016 at 11:18:58AM -0600, Toshi Kani wrote: > > > > DAX IO path does not support iostat, but its metadata IO path does. > > Therefore, iostat shows metadata IO statistics only, which has been > > confusing to users. > > > >

Re: [PATCH v2] DAX: enable iostat for read/write

2016-10-17 Thread Kani, Toshimitsu
On Mon, 2016-10-17 at 11:29 -0600, Ross Zwisler wrote: > On Mon, Oct 17, 2016 at 11:18:58AM -0600, Toshi Kani wrote: > > > > DAX IO path does not support iostat, but its metadata IO path does. > > Therefore, iostat shows metadata IO statistics only, which has been > > confusing to users. > > > >

Re: [PATCH v2] DAX: enable iostat for read/write

2016-10-17 Thread Ross Zwisler
On Mon, Oct 17, 2016 at 11:18:58AM -0600, Toshi Kani wrote: > DAX IO path does not support iostat, but its metadata IO path does. > Therefore, iostat shows metadata IO statistics only, which has been > confusing to users. > > Add iostat support to the DAX read/write path. > > Note, iostat still

Re: [PATCH v2] DAX: enable iostat for read/write

2016-10-17 Thread Ross Zwisler
On Mon, Oct 17, 2016 at 11:18:58AM -0600, Toshi Kani wrote: > DAX IO path does not support iostat, but its metadata IO path does. > Therefore, iostat shows metadata IO statistics only, which has been > confusing to users. > > Add iostat support to the DAX read/write path. > > Note, iostat still

[PATCH v2] DAX: enable iostat for read/write

2016-10-17 Thread Toshi Kani
DAX IO path does not support iostat, but its metadata IO path does. Therefore, iostat shows metadata IO statistics only, which has been confusing to users. Add iostat support to the DAX read/write path. Note, iostat still does not support the DAX mmap path as it allows user applications to

[PATCH v2] DAX: enable iostat for read/write

2016-10-17 Thread Toshi Kani
DAX IO path does not support iostat, but its metadata IO path does. Therefore, iostat shows metadata IO statistics only, which has been confusing to users. Add iostat support to the DAX read/write path. Note, iostat still does not support the DAX mmap path as it allows user applications to