On Wed, Mar 16, 2016 at 10:03 PM, Michael Paquier
<michael.paqu...@gmail.com> wrote:
> On Wed, Mar 16, 2016 at 5:28 AM, Robert Haas <robertmh...@gmail.com> wrote:
>> On Tue, Mar 15, 2016 at 9:17 AM, Thomas Reiss <thomas.re...@dalibo.com> 
>> wrote:
>>> Here's a small docpatch to fix two typos in the new documentation.
>>
>> Thanks, committed.
>
> I just had a quick look at the wait_event committed, and I got a
> little bit disappointed that we actually do not track latch waits yet,
> which is perhaps not that useful actually as long as an event name is
> not associated to a given latch wait when calling WaitLatch. I am not
> asking for that with this release, this is just for the archive's
> sake, and I don't mind coding that myself anyway if need be. The
> LWLock tracking facility looks rather cool btw :)

Yes, I'm quite excited about this.  I think it's pretty darn awesome.

I doubt that it would be useful to treat a latch wait as an event.
It's too generic.  You'd want something more specific, like waiting
for WAL to arrive or waiting for a tuple from a parallel worker or
waiting to write to the client.  It'll take some thought to figure out
how to organize and categorize that stuff, but it'll also be wicked
cool.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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