Re: [patch 0/2] genirq, proc: Speedup /proc/stat interrupt statistics

2019-01-30 Thread Waiman Long
On 01/30/2019 05:00 PM, Thomas Gleixner wrote: > On Wed, 30 Jan 2019, Andrew Morton wrote: >> On Wed, 30 Jan 2019 13:31:30 +0100 Thomas Gleixner >> wrote: >> >>> Waiman reported that on large systems with a large amount of interrupts the >>> readout of /proc/stat takes a long time to sum up the i

Re: [patch 0/2] genirq, proc: Speedup /proc/stat interrupt statistics

2019-01-30 Thread Waiman Long
On 01/30/2019 05:00 PM, Thomas Gleixner wrote: > On Wed, 30 Jan 2019, Andrew Morton wrote: >> On Wed, 30 Jan 2019 13:31:30 +0100 Thomas Gleixner >> wrote: >> >>> Waiman reported that on large systems with a large amount of interrupts the >>> readout of /proc/stat takes a long time to sum up the i

Re: [patch 0/2] genirq, proc: Speedup /proc/stat interrupt statistics

2019-01-30 Thread Andrew Morton
On Wed, 30 Jan 2019 13:31:30 +0100 Thomas Gleixner wrote: > Waiman reported that on large systems with a large amount of interrupts the > readout of /proc/stat takes a long time to sum up the interrupt > statistics. In principle this is not a problem. but for unknown reasons > some enterprise qua

Re: [patch 0/2] genirq, proc: Speedup /proc/stat interrupt statistics

2019-01-30 Thread Thomas Gleixner
On Wed, 30 Jan 2019, Andrew Morton wrote: > On Wed, 30 Jan 2019 13:31:30 +0100 Thomas Gleixner wrote: > > > Waiman reported that on large systems with a large amount of interrupts the > > readout of /proc/stat takes a long time to sum up the interrupt > > statistics. In principle this is not a pr

Re: [patch 0/2] genirq, proc: Speedup /proc/stat interrupt statistics

2019-01-30 Thread Waiman Long
On 01/30/2019 07:31 AM, Thomas Gleixner wrote: > Waiman reported that on large systems with a large amount of interrupts the > readout of /proc/stat takes a long time to sum up the interrupt > statistics. In principle this is not a problem. but for unknown reasons > some enterprise quality software

[patch 0/2] genirq, proc: Speedup /proc/stat interrupt statistics

2019-01-30 Thread Thomas Gleixner
Waiman reported that on large systems with a large amount of interrupts the readout of /proc/stat takes a long time to sum up the interrupt statistics. In principle this is not a problem. but for unknown reasons some enterprise quality software reads /proc/stat with a high frequency. The reason fo