# Nginx Slowdown on Solaris

**URL:** <https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339>\
**Category:** NGINX\
**Created:** [April 28, 2011, 2:13pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339 "2011-04-28T14:13:16Z")\
**Posts on this page:** 12\
**Page:** 1

<div class="post-metadata">

**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\
**Post date:** [April 28, 2011, 2:13pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/1 "2011-04-28T14:13:16Z")

</div>

Hello,

I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit  
but I’m not abble to find it.  
I use Nginx to serve static image and sometimes to get one image I need  
to wait 10 or more seconds.

nginx is launched with a ulimit -n 65536, and here is my config:

worker\_processes 40;  
error\_log logs/error.log;  
events {  
worker\_connections 8192;  
devpoll\_events 1;  
}  
http {  
include mime.types;  
default\_type application/octet-stream;

```
sendfile on;
keepalive_timeout 15;

gzip on;
gzip_buffers 16 8k;
gzip_types text/plain text/html text/css text/javascript

```

application/x-javascript;  
server {  
listen 80;  
…  
}

I’ve got stub\_status activated and here is a graph with the stats I  
have:

[http://img546.imageshack.us/img546/5369/nginx.png](http://img546.imageshack.us/img546/5369/nginx.png)

I modify log level in order to check if I’ve got some warning about  
wrong configuration but nothing.

Do you have any idea to solve this problem ?

Thanks for your help,

Julien

Posted at Nginx Forum:

> **[Nginx Slowdown on Solaris](https://forum.nginx.org/read.php?2,194233,194233#msg-194233)**
>
> Hello, I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit but I'm not abble to find it. I use Nginx to serve static image and sometimes to get one image I need to wait 10 or more seconds. nginx is launched with a ulimit -n...

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 28, 2011, 2:19pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/2 "2011-04-28T14:19:27Z")

</div>

Hi,

On Thu, Apr 28, 2011 at 08:12:59AM -0400, darckos wrote:

> Hello,
> 
> I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit  
> but I’m not abble to find it.  
> I use Nginx to serve static image and sometimes to get one image I need  
> to wait 10 or more seconds.
> 
> nginx is launched with a ulimit -n 65536, and here is my config:
> 
> worker\_processes 40;

[skip config]

why are you using such a large number of workers?

Could you show output for the following command:

$ ps ax -o %cpu,vsz,wchan,command | grep “nginx|PID”

–  
Sergey A. Osokin  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 28, 2011, 2:48pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/3 "2011-04-28T14:48:32Z")

</div>

Hi,

At first, the configuration was 24 (number of cpu core), but I tryed to  
increase it and I feel like it was better but it’s maybe a mistake.

Here is the output of ps -fe -o pcpu,vsz,wchan,comm | grep “nginx” (ps  
-x is not available under Solaris)

0.0 5856 ffffffffabe334d0 /opt/nginx/sbin/nginx  
0.0 5880 fffffe84dcf17638 /opt/nginx/sbin/nginx  
0.0 6168 fffffe84e1c637c8 /opt/nginx/sbin/nginx  
0.0 5880 fffffe84e1c68ca0 /opt/nginx/sbin/nginx  
0.1 6032 ffffffffab58aae8 /opt/nginx/sbin/nginx  
0.0 5984 ffffffffab5a74b0 /opt/nginx/sbin/nginx  
0.0 5920 fffffe84d34bc660 /opt/nginx/sbin/nginx  
0.0 5872 ffffffffaa576c88 /opt/nginx/sbin/nginx  
0.1 5880 ffffffff9e03ef98 /opt/nginx/sbin/nginx  
0.0 6008 fffffe84d61f74c8 /opt/nginx/sbin/nginx  
0.0 5936 ffffffffaa13b4b0 /opt/nginx/sbin/nginx  
0.0 6208 ffffffffab3e3e08 /opt/nginx/sbin/nginx  
0.0 5888 ffffffffa3e3f330 /opt/nginx/sbin/nginx  
0.0 5920 ffffffffa614c7e8 /opt/nginx/sbin/nginx  
0.1 5904 ffffffffabc04fc0 /opt/nginx/sbin/nginx  
0.0 5832 ffffffffaa080f98 /opt/nginx/sbin/nginx  
0.1 5992 fffffe84e06dbca0 /opt/nginx/sbin/nginx  
0.0 5888 ffffffffab7c1c98 /opt/nginx/sbin/nginx  
0.0 3120 ffffffffa82ec5d6 /opt/nginx/sbin/nginx  
0.0 6128 ffffffffab4ecaf8 /opt/nginx/sbin/nginx  
0.0 5952 ffffffffabf64e10 /opt/nginx/sbin/nginx  
0.0 5968 ffffffffab975c98 /opt/nginx/sbin/nginx  
0.1 5992 ffffffffabbcf7e8 /opt/nginx/sbin/nginx  
0.0 5968 ffffffffa9b01c98 /opt/nginx/sbin/nginx  
0.1 6256 fffffe84e06e54c0 /opt/nginx/sbin/nginx  
0.0 5888 fffffe84d28eae20 /opt/nginx/sbin/nginx  
0.0 5744 fffffe84d5a8e960 /opt/nginx/sbin/nginx  
0.0 5936 fffffe84e1c63c78 /opt/nginx/sbin/nginx  
0.1 6184 ffffffffa9fb94b0 /opt/nginx/sbin/nginx  
0.0 5880 fffffe84d28dcc88 /opt/nginx/sbin/nginx  
0.1 5968 ffffffffab5404d0 /opt/nginx/sbin/nginx  
0.0 5744 ffffffffa8e35f98 /opt/nginx/sbin/nginx  
0.1 5976 ffffffffa9fa67d8 /opt/nginx/sbin/nginx  
0.0 6144 fffffe84d5a50c98 /opt/nginx/sbin/nginx  
0.0 6200 ffffffffa7839970 /opt/nginx/sbin/nginx  
0.1 5984 fffffe84de37d188 /opt/nginx/sbin/nginx  
0.1 5992 ffffffffab5a7190 /opt/nginx/sbin/nginx  
0.1 6160 ffffffffab7edfc0 /opt/nginx/sbin/nginx  
0.0 5984 fffffe84d5a55b00 /opt/nginx/sbin/nginx  
0.0 5896 fffffe84d343f970 /opt/nginx/sbin/nginx  
0.1 5856 fffffe84d28f8e30 /opt/nginx/sbin/nginx

I don’t know if you’ve what you need on this output. I’m not familliar  
with format option of ps.

Thanks for your help

Posted at Nginx Forum:

> **[Re: Nginx Slowdown on Solaris](https://forum.nginx.org/read.php?2,194233,194237#msg-194237)**
>
> Hello, I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit but I'm not abble to find it. I use Nginx to serve static image and sometimes to get one image I need to wait 10 or more seconds. nginx is launched with a ulimit -n...

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 28, 2011, 3:26pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/4 "2011-04-28T15:26:12Z")

</div>

On Thu, Apr 28, 2011 at 08:48:18AM -0400, darckos wrote:

> At first, the configuration was 24 (number of cpu core), but I tryed to  
> increase it and I feel like it was better but it’s maybe a mistake.
> 
> Here is the output of ps -fe -o pcpu,vsz,wchan,comm | grep “nginx” (ps  
> -x is not available under Solaris)

Oops, its Solaris.

> I don’t know if you’ve what you need on this output. I’m not familliar  
> with format option of ps.

For Solaris the command should looks like:

% ps -ef -o pcpu,vsz,wchan,comm,args | grep nginx

(also -A or -a flags)

In output your should look at wchan parameter, the event (an address in  
the system)  
on which a process waits.

–  
Sergey A. Osokin  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 28, 2011, 4:15pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/5 "2011-04-28T16:15:03Z")

</div>

Yes, like you said… it is Solaris 🙂

ps -ef -o pcpu,vsz,wchan,comm,args | grep nginx  
0.0 6032 ffffffffabc04660 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5880 ffffffffa9982188 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6168 ffffffffa81f9e20 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5880 ffffffffab3ba660 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6032 ffffffffa9fb97d0 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5984 ffffffffaa017338 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5920 ffffffffab7edb10 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5872 ffffffffa9bd9e30 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.1 5888 fffffe84e742b7f0 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6008 ffffffffab4ec968 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.1 5936 ffffffffa6422e10 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6208 fffffe84d5a61fa0 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5888 ffffffffab55d978 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5920 ffffffffab5a7320 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.1 5904 fffffe84d28fdae8 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5880 ffffffffab708188 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5992 ffffffffab975e28 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.1 5888 ffffffffa81f9fb0 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 3120 ffffffffa82ec5d6 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6128 ffffffffaa080318 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5952 fffffe84d077e640 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5968 ffffffffa9fa6fa8 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5992 fffffe84d2ec3650 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.1 5968 fffffe84d5a8b328 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.1 6256 fffffe84d5a4cca0 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5888 ffffffffaa080638 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5744 ffffffffa9a687d8 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.1 6008 fffffe84d28eae20 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6184 fffffe84d12127c8 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
1.0 5880 fffffe84d34bcb10 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5968 fffffe84e06d5188 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5744 ffffffffa9fa6198 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5976 fffffe84e7205fa8 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6144 ffffffffaa4f0c78 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6200 fffffe84d5a4cfc0 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5984 fffffe84e72007e0 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5992 ffffffffab603648 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 6160 ffffffffabfee330 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.1 5984 fffffe84d344c648 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5896 ffffffffab761fb0 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf  
0.0 5960 fffffe84d1212f98 /opt/nginx/sbin/nginx  
/opt/nginx/sbin/nginx -c  
/opt/nginx/conf/nginx.conf

For the moment my nginx is soft:

[http://img192.imageshack.us/img192/4152/nginxnow.png](http://img192.imageshack.us/img192/4152/nginxnow.png)

I will try to launch the command when Nginx is more used (maybe this  
night)

Thanks for your help,

Julien

Posted at Nginx Forum:

> **[Re: Nginx Slowdown on Solaris](https://forum.nginx.org/read.php?2,194233,194246#msg-194246)**
>
> Hello, I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit but I'm not abble to find it. I use Nginx to serve static image and sometimes to get one image I need to wait 10 or more seconds. nginx is launched with a ulimit -n...

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 28, 2011, 4:58pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/6 "2011-04-28T16:58:19Z")

</div>

Hello!

On Thu, Apr 28, 2011 at 08:12:59AM -0400, darckos wrote:

> Hello,
> 
> I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit  
> but I’m not abble to find it.  
> I use Nginx to serve static image and sometimes to get one image I need  
> to wait 10 or more seconds.

Most likely nginx actually disk bound and worker processes are  
blocked on disk, and that’s what causes such delays.

You may want to examine iostat output to see if it really happens.

> ```
> default_type application/octet-stream;
> 
> sendfile on;
> 
> ```

[…]

> Do you have any idea to solve this problem ?

Try the following (in no particular order, you may want actually  
to start with (3)):

1. Tune worker\_processes to add more (or less) concurency to make  
sure disks are reasonably loaded but not overloaded (i.e. disk r/w  
times are small enough).

2. Try switching accept\_mutex off to get better request  
distribution between worker processes.

3. Switch off sendfile and tune output\_buffers to use 1-2 big  
enough buffers to make sure requests to disks will be big (and  
disks aren’t trashed with large number of small requests).  
Something like

will do the trick (using bigger buffers may help better if you  
have enough memory and your images are big enough).

Ideally aio should be used in such situation, but it’s not  
available with nginx under Solaris.

Maxim D.

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 28, 2011, 6:53pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/7 "2011-04-28T18:53:17Z")

</div>

Thanks for your help. I will try all these solutions.

Regards,

Julien

Posted at Nginx Forum:

> **[Re: Nginx Slowdown on Solaris](https://forum.nginx.org/read.php?2,194233,194297#msg-194297)**
>
> Hello, I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit but I'm not abble to find it. I use Nginx to serve static image and sometimes to get one image I need to wait 10 or more seconds. nginx is launched with a ulimit -n...

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 28, 2011, 4:20pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/8 "2011-04-28T16:20:00Z")

</div>

On Thu, Apr 28, 2011 at 09:38:18AM -0400, darckos wrote:

> Yes, like you said… it is Solaris 🙂
> 
> 0.1 5984 fffffe84d344c648 /opt/nginx/sbin/nginx /opt/nginx/sbin/nginx -c \>  
> /opt/nginx/conf/nginx.conf

[skipped other nginx procs]

Better, but on FreeBSD I have the name of process state:

0.0 9264 pause nginx: master process /usr/local/sbin/nginx  
0.0 9264 kqread nginx: worker process (nginx)

It looks like it doesn’t exist in Solaris.

–  
Sergey A. Osokin  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 29, 2011, 3:29pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/9 "2011-04-29T15:29:20Z")

</div>

Server is not busy at all. 16G of memory and 24 core just for static  
delivery … 🙂

Posted at Nginx Forum:

> **[Re: Nginx Slowdown on Solaris](https://forum.nginx.org/read.php?2,194233,194456#msg-194456)**
>
> Hello, I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit but I'm not abble to find it. I use Nginx to serve static image and sometimes to get one image I need to wait 10 or more seconds. nginx is launched with a ulimit -n...

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 28, 2011, 10:51pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/10 "2011-04-28T22:51:17Z")

</div>

## darckos Wrote:

> I use Nginx to serve static image and sometimes to  
> get one image I need to wait 10 or more seconds.

Strangely I was having the exact same problem on a very busy freebsd 8.0  
i386 machine that serves images as well. Raising worker\_priority to -10  
helped a lot.

Posted at Nginx Forum:  
[http://forum.nginx.org/read.php?2,194233,194370#msg-194370](http://forum.nginx.org/read.php?2,194233,194370#msg-194370)

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [April 29, 2011, 7:12pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/11 "2011-04-29T19:12:08Z")

</div>

## darckos Wrote:

> Server is not busy at all. 16G of memory and 24  
> core just for static delivery … 🙂

Well sometimes it happens even when machine is idle and serving about 10  
or 20 images per second. But seems to happen more often with normal  
priority. So it might not be related to how busy machine is.  
Anyway I still can’t get rid of this problem completely and can’t find a  
way to reproduce it.

Posted at Nginx Forum:  
[http://forum.nginx.org/read.php?2,194233,194501#msg-194501](http://forum.nginx.org/read.php?2,194233,194501#msg-194501)

---

<div class="post-metadata">

**Author:** ![darckos](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/2bfe46/32.png) [@darckos](https://www.ruby-forum.com/u/darckos)\
**Post date:** [May 3, 2011, 4:25pm UTC](https://www.ruby-forum.com/t/nginx-slowdown-on-solaris/206339/12 "2011-05-03T16:25:23Z")

</div>

Hello,

I just changed my config with option 3 and I feel like my nignx is  
better now.

[http://img232.imageshack.us/img232/5369/nginx.png](http://img232.imageshack.us/img232/5369/nginx.png)

My new config is :

worker\_processes 24;

events {  
worker\_connections 2048;  
devpoll\_events 1;  
}

http {  
include mime.types;  
default\_type application/octet-stream;

```
output_buffers 2 256k;
keepalive_timeout 15;

```

…  
}

Thanks for your help

Posted at Nginx Forum:

> **[Re: Nginx Slowdown on Solaris](https://forum.nginx.org/read.php?2,194233,195256#msg-195256)**
>
> Hello, I use nginx 0.8.53 on Solaris 10 and I feel like I reach a kind of limit but I'm not abble to find it. I use Nginx to serve static image and sometimes to get one image I need to wait 10 or more seconds. nginx is launched with a ulimit -n...