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We've used HiPE in parts of our system that required tight fast
loops. Whenever we need something to go fast due to some algorithmic
complexity, <i>and</i> that we can manage to isolate it as a single
unit that doesn't need to call to non-HiPE code, we will try to
convert it.<br>
<br>
Basically, I've been told that HiPE and Beam have some overhead when
it comes to switching from one to the other. When we have a bit of
code that is a hotspot, I'll try to inline whatever calls are made
to other modules (mostly lists), compile only that module with HiPE,
and let it do its thing. Sometimes benchmarks go in HiPE's favour,
sometimes not.<br>
<br>
In a particular instance of our stack, it gave us nearly 2x speedup
on loop & search operations that frequently happen more than
50,000 times per second. Definitely worth it, and it's been running
in production for months, just for that single module.<br>
<br>
<div class="moz-cite-prefix">On 12-11-09 8:45 AM, Valentin Micic
wrote:<br>
</div>
<blockquote
cite="mid:C4CAE6A0-A601-4004-AAA5-625B9B71424F@pixie.co.za"
type="cite">Interestingly enough, this was a kind of conclusion
we've arrived at as well -- the good performance of Beam, combined
with "perceived instability", acted as a serious deterrent for me.
<div>
<div>But Max, wouldn't you like to know if there are any brave
souls out there that were prepared to go beyond perceptions
and successfully tried it in "real-life" situation?</div>
<div><br>
</div>
<div>V/</div>
<div>
<div><br>
</div>
<div><br>
<div>
<div>On 09 Nov 2012, at 3:34 PM, Max Bourinov wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">Unrelated, but: we were
considering to give a try to HiPE but so far there is no
need to do it for us because Beam outperforms everything
else in our problem domain.
<div><br>
</div>
<div><br clear="all">
<div>Best regards,</div>
<div>Max</div>
<br>
<br>
<br>
<br>
<div class="gmail_quote">On Fri, Nov 9, 2012 at 5:16
PM, Valentin Micic <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:valentin@pixie.co.za"
target="_blank">valentin@pixie.co.za</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Unrelated, but would be interesting to find out --
are there any commercial-grade (let alone
carrier-grade) systems that take advantage of
HiPE?<br>
<span><font color="#888888"><br>
<br>
V/<br>
</font></span>
<div>
<div><br>
On 09 Nov 2012, at 2:11 PM, Schneider wrote:<br>
<br>
> you're right. HIPE generates compiled
code.<br>
> my mistake.<br>
> take a look here for more info's about
HIPE:<br>
> <a moz-do-not-send="true"
href="http://user.it.uu.se/%7Ekostis/Papers/erlang03.pdf"
target="_blank">http://user.it.uu.se/~kostis/Papers/erlang03.pdf</a><br>
><br>
> greatz Johannes<br>
><br>
><br>
> On Fr 09 Nov 2012 13:07:49 CET, Matti
Oinas wrote:<br>
>> Correct me if I'm wrong but doesn't
HIPE compile to native code?<br>
>><br>
>> --<br>
>> Matti<br>
>><br>
>> On Fri, Nov 9, 2012 at 1:57 PM,
Schneider <<a moz-do-not-send="true"
href="mailto:js@globe.de" target="_blank">js@globe.de</a>>
wrote:<br>
>>> Erlang is a language, which
produced byte-code which get' interpreted by
the<br>
>>> Erlang engine. C++ instead
generates mashing-code which has on the one
hand<br>
>>> a much better performance, on the
other hand,<br>
>>> some disadvantages like
incompatibility between different OSs.<br>
>>><br>
>>> greatz Johannes<br>
>>><br>
>>><br>
>>> On Fr 09 Nov 2012 09:42:21 CET,
hume npx wrote:<br>
>>>><br>
>>>> Hi, all:<br>
>>>> I'am new to erlang, after
investigate some benchmark such as at<br>
>>>> <a moz-do-not-send="true"
href="http://shootout.alioth.debian.org/u64q/which-programs-are-fastest.php"
target="_blank">http://shootout.alioth.debian.org/u64q/which-programs-are-fastest.php</a>,<br>
>>>> I found that erlang compiler
is not so good at speed? the benchmark<br>
>>>> shows that erlang Hipe is 13x
slowdown compared to C++, as compared to<br>
>>>> Haskell GHC (3.3x slowdown),
go 2.98x slowdown or even javascript v8<br>
>>>> is about 1x faster than
erlang, I investigated the erLLVM project<br>
>>>> which reported similar
results to Hipe, you know performance is so<br>
>>>> important nowadays, what
caused the hard to improve performace of<br>
>>>> erlang or just there are not
people working on it? Erlang is<br>
>>>> attractive to me after
several days studying, but with great<br>
>>>> performance will be more
attractive and competitive to some languages<br>
>>>> such as go etc.<br>
>>>><br>
>>>><br>
>>>>
_______________________________________________<br>
>>>> erlang-questions mailing list<br>
>>>> <a moz-do-not-send="true"
href="mailto:erlang-questions@erlang.org"
target="_blank">erlang-questions@erlang.org</a><br>
>>>> <a moz-do-not-send="true"
href="http://erlang.org/mailman/listinfo/erlang-questions"
target="_blank">http://erlang.org/mailman/listinfo/erlang-questions</a><br>
>>><br>
>>><br>
>>><br>
>>>
_______________________________________________<br>
>>> erlang-questions mailing list<br>
>>> <a moz-do-not-send="true"
href="mailto:erlang-questions@erlang.org"
target="_blank">erlang-questions@erlang.org</a><br>
>>> <a moz-do-not-send="true"
href="http://erlang.org/mailman/listinfo/erlang-questions"
target="_blank">http://erlang.org/mailman/listinfo/erlang-questions</a><br>
><br>
><br>
>
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target="_blank">erlang-questions@erlang.org</a><br>
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target="_blank">http://erlang.org/mailman/listinfo/erlang-questions</a><br>
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