Re: [RFC] blkio_delay_total is calculated mistakenly

2017-03-02 Thread Weiwei Jia
Ping? Can anyone please add some comments for this change? Thank you. Best, Weiwei Jia On Tue, Feb 14, 2017 at 8:27 PM, Weiwei Jia wrote: > Hi, > > When I read Linux Kernel source codes about how "blkio_delay_total" > (delay waiting for synchronous block I/O to complete for one task) is > calcu

Re: [RFC] blkio_delay_total is calculated mistakenly

2017-02-14 Thread Weiwei Jia
On Tue, Feb 14, 2017 at 10:00 PM, Greg KH wrote: > On Tue, Feb 14, 2017 at 08:27:36PM -0500, Weiwei Jia wrote: >> Hi, >>Balbir Singh >> When I read Linux Kernel source codes about how "blkio_delay_total" >> (delay waiting for synchronous block I/O to complete for one task) is >> calculated in Lin

Re: [RFC] blkio_delay_total is calculated mistakenly

2017-02-14 Thread Greg KH
On Tue, Feb 14, 2017 at 08:27:36PM -0500, Weiwei Jia wrote: > Hi, > > When I read Linux Kernel source codes about how "blkio_delay_total" > (delay waiting for synchronous block I/O to complete for one task) is > calculated in Linux/kernel/delayacct.c file [1], I find that > "blkio_delay_total" add