curl-loader-devel

libevent/libev benchmark updated for libevent-1.4.3

[Robert I. <cor...@gm...>]

Hi folks,

>From the below e-mail looks like curl-loader
can benefit from advancing to libevent-1.4.3, which is mature enough
now.

What do you think?


---------- Forwarded message ----------
From: Marc Lehmann <li...@sc...>
Date: Wed, May 7, 2008 at 6:42 PM
Subject: [Libevent-users] FYI: libevent/libev benchmark updated for
libevent-1.4.3
To: lib...@mo..., li...@li...


As version 1.4.3-stable of libevent uses a more efficient binary heap
over the red-black tree used before, the benchmark at:

 http://libev.schmorp.de/bench.html

was quite outdated. I therefore updated it by benchmarking libev-3.31 vs.
libevent-1.4.3.

The main difference is that the growth characteristics of libevent are now
similar to libev (and the factor of 2-3 remains).

(Note that the upcoming 3.33 version of libev uses a more cache-friendly
4-heap, but the benchmark still uses 3.31).

Enjoy,

--
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-- 
Truly,
Robert Iakobashvili, Ph.D.
......................................................................
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Ghotit - Assistive technology that understands you
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Re: libevent/libev benchmark updated for libevent-1.4.3

[Aleksandar L. <al-...@no...>]

Hi,

On Mit 07.05.2008 19:30, Robert Iakobashvili wrote:
>Hi folks,
>
>From the below e-mail looks like curl-loader can benefit from
>advancing to libevent-1.4.3, which is mature enough now.
>
>What do you think?

Looks like, any experience with the 1.4.x libevent?

Cheers

Aleks

Re: libevent/libev benchmark updated for libevent-1.4.3

[Robert I. <cor...@gm...>]

Hi Aleksander,

On Thu, May 8, 2008 at 5:57 PM, Aleksandar Lazic <al-...@no...> wrote:

> >From the below e-mail looks like curl-loader can benefit from
>>advancing to libevent-1.4.3, which is mature enough now.
>>
>>What do you think?
>
> Looks like, any experience with the 1.4.x libevent?

We do not have any experience with libevent 1.4x,
but the people on libevent mailing list are claiming higher performance
coupled at a good stability.

Any experience on your side?

-- 
Truly,
Robert Iakobashvili, Ph.D.
......................................................................
www.ghotit.com
Ghotit - Assistive technology that understands you
......................................................................

Re: libevent/libev benchmark updated for libevent-1.4.3

[Aleksandar L. <al-...@no...>]

Hi Robert,

On Don 08.05.2008 18:12, Robert Iakobashvili wrote:
>On Thu, May 8, 2008 at 5:57 PM, Aleksandar Lazic
><al-...@no...> wrote:
>
>> Looks like, any experience with the 1.4.x libevent?
>
>We do not have any experience with libevent 1.4x, but the people on
>libevent mailing list are claiming higher performance coupled at a good
>stability.
>
>Any experience on your side?

Not really ;-(.

Aleks

Strange result of scenario

[Niko W. S. S. <nik...@ya...>]

1. Why the mean response time from lower concurrent user is not always lower than the higher concurrent user with the same configuration? Is there a condition where the lower concurrent user will always has mean response time lower than higher concurrent user? 

2. What is the effect if I increase the amount of file descriptor with ulimit command?

Thanks.


Best, 
Niko Wilfritz Sianipar
Teknik Informatika IT Telkom Bandung

       
---------------------------------
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Re: Strange result of scenario

[Robert I. <cor...@gm...>]

Hi Niko,

On Tue, May 13, 2008 at 10:04 AM, Niko Wilfritz Sianipar Sianipar
<nik...@ya...> wrote:
> 1. Why the mean response time from lower concurrent user is not always lower
> than the higher concurrent user with the same configuration? Is there a
> condition where the lower concurrent user will always has mean response time
> lower than higher concurrent user?

The question is beyond of curl-loader scope.
U may wish to learn about your web-server caching policy, etc
application-related
issues.

> 2. What is the effect if I increase the amount of file descriptor with
> ulimit command?

It increases the allowed amount of open file descriptors (sockets).
Y may wish to read the High-Load sections of the FAQs.

> Best,
> Niko Wilfritz Sianipar
> Teknik Informatika IT Telkom Bandung

-- 
Truly,
Robert Iakobashvili, Ph.D.
......................................................................
Assistive technology that understands you
......................................................................