[haiku-development] Re: [haiku] Re: NetPositive missing symbol?
- From: Pete Goodeve <pete.goodeve@xxxxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Tue, 7 Feb 2012 12:39:21 -0800
On Mon, Feb 06, 2012 at 02:27:16PM -0800, Donn Cave wrote:
> Quoth Pete Goodeve,
> > ... Under NP it was readable in under 2 seconds;
> > with WP I was still waiting 30 secs later!
>
> By coincidence, I just today experimented with a fix for this problem
> in WebPositive. My build loads a page in something like 3 seconds,
> compared to 19 seconds for the standard build.
>
> If you use strace on WebPositive, you can see what it's up to during
> those seconds - I think you'll see it's timing out in _kern_select,
> after sending what I believe are IPV6 DNS requests. (The timeouts add
> up to 22 seconds, maybe my wall clock timing is off.) My fix was to
> specify an IPv4-only option for the curl library called by webcore.
>
Not quite clear on the details here... Was this a rebuild of curl or WP?
Should moving the ipv6 modules (in .../network/protocols and
datalink-protocols) out of the way have a similar effect?
Doing a "strace -f Webpositive|grep select" with and without them
shows little difference. -- and nothing noticeable in page-download
time. There seem to be some long select waits (~34ms) in both
conditions, and quite a few 5ms ones (haven't totalled them up).
-- Pete --
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