On 07/30/2016 10:31 AM, George Amvrosiadis wrote:
> Dave, I can produce a patch that adds the extra two tracepoints and exports
> all four tracepoint symbols. This would be a short patch that would just
> extend existing tracing functionality. What do you think?
Adding those tracepoints is probabl
On Fri, Jul 29, 2016 at 08:33:34AM -0700, Dave Hansen wrote:
> What's to stop you from using tracing to gather and transport data out
> of the kernel and then aggregate and present it to apps in an "elegant"
> way of your choosing?
>
> I don't think it's really even worth having an in-depth discus
On 07/28/2016 08:47 PM, George Amvrosiadis wrote:
> On Thu, Jul 28, 2016 at 02:02:45PM -0700, Dave Hansen wrote:
>> On 07/25/2016 08:47 PM, George Amvrosiadis wrote:
>>> 21 files changed, 2424 insertions(+), 1 deletion(-)
>>
>> I like the idea, but yikes, that's a lot of code.
>>
>> Have you consi
On Thu, Jul 28, 2016 at 02:02:45PM -0700, Dave Hansen wrote:
> On 07/25/2016 08:47 PM, George Amvrosiadis wrote:
> > 21 files changed, 2424 insertions(+), 1 deletion(-)
>
> I like the idea, but yikes, that's a lot of code.
>
> Have you considered using or augmenting the kernel's existing tracing
On 07/25/2016 08:47 PM, George Amvrosiadis wrote:
> 21 files changed, 2424 insertions(+), 1 deletion(-)
I like the idea, but yikes, that's a lot of code.
Have you considered using or augmenting the kernel's existing tracing
mechanisms? Have you considered using something like netlink for
transp
I'm attaching a patch set implementing a mechanism we call Duet, which allows
applications to monitor events at the page cache level: page additions,
removals, dirtying, and flushing. Using such events, applications can identify
and prioritize processing of cached data, thereby reducing their I/O f
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