Re: [PATCH RESEND 0/2] enable hires timer to timeout datagram socket

2017-08-22 Thread Vallish Vaidyeshwara
On Tue, Aug 22, 2017 at 08:23:11AM +0200, Richard Cochran wrote: > On Mon, Aug 21, 2017 at 06:22:10PM +, Vallish Vaidyeshwara wrote: > > AWS Lambda is affected by this change in behavior in > > system call. Following links has more information: > > https://en.wikipedia.org/wiki/AWS_Lambda > >

Re: [PATCH RESEND 0/2] enable hires timer to timeout datagram socket

2017-08-21 Thread Richard Cochran
On Mon, Aug 21, 2017 at 06:22:10PM +, Vallish Vaidyeshwara wrote: > AWS Lambda is affected by this change in behavior in > system call. Following links has more information: > https://en.wikipedia.org/wiki/AWS_Lambda Quote: Unlike Amazon EC2, which is priced by the hour, AWS Lambda is

Re: [PATCH RESEND 0/2] enable hires timer to timeout datagram socket

2017-08-21 Thread Vallish Vaidyeshwara
On Sun, Aug 20, 2017 at 01:47:45AM +, Vallish Vaidyeshwara wrote: > On Sat, Aug 19, 2017 at 08:21:45AM +0200, Richard Cochran wrote: > > On Fri, Aug 18, 2017 at 10:27:56PM +, Vallish Vaidyeshwara wrote: > > > We have a on-demand application that uses long timeouts and needs to > > > react

Re: [PATCH RESEND 0/2] enable hires timer to timeout datagram socket

2017-08-19 Thread Vallish Vaidyeshwara
On Sat, Aug 19, 2017 at 08:21:45AM +0200, Richard Cochran wrote: > On Fri, Aug 18, 2017 at 10:27:56PM +, Vallish Vaidyeshwara wrote: > > We have a on-demand application that uses long timeouts and needs to react > > to > > events within milliseconds. > Hello Richard, > Huh? The test program

Re: [PATCH RESEND 0/2] enable hires timer to timeout datagram socket

2017-08-18 Thread Richard Cochran
On Fri, Aug 18, 2017 at 10:27:56PM +, Vallish Vaidyeshwara wrote: > We have a on-demand application that uses long timeouts and needs to react to > events within milliseconds. Huh? The test program you posted does not react to any event. Thanks, Richard

Re: [PATCH RESEND 0/2] enable hires timer to timeout datagram socket

2017-08-18 Thread Vallish Vaidyeshwara
On Fri, Aug 18, 2017 at 10:18:54PM +0200, Richard Cochran wrote: > On Fri, Aug 18, 2017 at 06:44:08PM +, Vallish Vaidyeshwara wrote: > > There has been a behavior change in 4.9 kernel with refactoring of Kernel > > timer wheel in 4.8. We have a use case wherein our datagram socket > > applicati

Re: [PATCH RESEND 0/2] enable hires timer to timeout datagram socket

2017-08-18 Thread Richard Cochran
On Fri, Aug 18, 2017 at 06:44:08PM +, Vallish Vaidyeshwara wrote: > There has been a behavior change in 4.9 kernel with refactoring of Kernel > timer wheel in 4.8. We have a use case wherein our datagram socket > application is sensitive to socket timeout including long timeouts. > > One of th

[PATCH RESEND 0/2] enable hires timer to timeout datagram socket

2017-08-18 Thread Vallish Vaidyeshwara
Hello Dave, Resending the patch series to include netdev mailing list with a cover letter. I am submitting 2 patch series to enable hires timer to timeout datagram sockets (AF_UNIX & AF_INET domain) and test code to test timeout accuracy on these sockets. There has been a behavior change in 4.9