Re: [PATCH v2 0/2] Add epoll round robin wakeup mode

2015-02-17 Thread Jason Baron
On 02/17/2015 04:09 PM, Andy Lutomirski wrote: > On Tue, Feb 17, 2015 at 12:33 PM, Jason Baron wrote: >> On 02/17/2015 02:46 PM, Andy Lutomirski wrote: >>> On Tue, Feb 17, 2015 at 11:33 AM, Jason Baron wrote: When we are sharing a wakeup source among multiple epoll fds, we end up with

Re: [PATCH v2 0/2] Add epoll round robin wakeup mode

2015-02-17 Thread Andy Lutomirski
On Tue, Feb 17, 2015 at 12:33 PM, Jason Baron wrote: > On 02/17/2015 02:46 PM, Andy Lutomirski wrote: >> On Tue, Feb 17, 2015 at 11:33 AM, Jason Baron wrote: >>> When we are sharing a wakeup source among multiple epoll fds, we end up with >>> thundering herd wakeups, since there is currently no

Re: [PATCH v2 0/2] Add epoll round robin wakeup mode

2015-02-17 Thread Jason Baron
On 02/17/2015 02:46 PM, Andy Lutomirski wrote: > On Tue, Feb 17, 2015 at 11:33 AM, Jason Baron wrote: >> When we are sharing a wakeup source among multiple epoll fds, we end up with >> thundering herd wakeups, since there is currently no way to add to the >> wakeup source exclusively. This series

Re: [PATCH v2 0/2] Add epoll round robin wakeup mode

2015-02-17 Thread Andy Lutomirski
On Tue, Feb 17, 2015 at 11:33 AM, Jason Baron wrote: > When we are sharing a wakeup source among multiple epoll fds, we end up with > thundering herd wakeups, since there is currently no way to add to the > wakeup source exclusively. This series introduces 2 new epoll flags, > EPOLLEXCLUSIVE for

Re: [PATCH v2 0/2] Add epoll round robin wakeup mode

2015-02-17 Thread Jason Baron
On 02/17/2015 04:09 PM, Andy Lutomirski wrote: On Tue, Feb 17, 2015 at 12:33 PM, Jason Baron jba...@akamai.com wrote: On 02/17/2015 02:46 PM, Andy Lutomirski wrote: On Tue, Feb 17, 2015 at 11:33 AM, Jason Baron jba...@akamai.com wrote: When we are sharing a wakeup source among multiple epoll

Re: [PATCH v2 0/2] Add epoll round robin wakeup mode

2015-02-17 Thread Andy Lutomirski
On Tue, Feb 17, 2015 at 11:33 AM, Jason Baron jba...@akamai.com wrote: When we are sharing a wakeup source among multiple epoll fds, we end up with thundering herd wakeups, since there is currently no way to add to the wakeup source exclusively. This series introduces 2 new epoll flags,

Re: [PATCH v2 0/2] Add epoll round robin wakeup mode

2015-02-17 Thread Jason Baron
On 02/17/2015 02:46 PM, Andy Lutomirski wrote: On Tue, Feb 17, 2015 at 11:33 AM, Jason Baron jba...@akamai.com wrote: When we are sharing a wakeup source among multiple epoll fds, we end up with thundering herd wakeups, since there is currently no way to add to the wakeup source exclusively.

Re: [PATCH v2 0/2] Add epoll round robin wakeup mode

2015-02-17 Thread Andy Lutomirski
On Tue, Feb 17, 2015 at 12:33 PM, Jason Baron jba...@akamai.com wrote: On 02/17/2015 02:46 PM, Andy Lutomirski wrote: On Tue, Feb 17, 2015 at 11:33 AM, Jason Baron jba...@akamai.com wrote: When we are sharing a wakeup source among multiple epoll fds, we end up with thundering herd wakeups,