Re: HTTPS throughput too low

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

Dear CK Zhang,

Can you run HTTPS sessions with -v detailed logging and say if
you seen in logs something interesting.
Thanks,
Robert



On Tue, Oct 11, 2011 at 11:14 AM, CK Zhang <ck...@fo...> wrote:
> Dear Robert
>
>
>
> Thanks a lot for your replay,
>
>
>
> Here are some answer about your questions
>
>
>
>
>
> What happens if you try HTTP? Does it impact throughput?
>
>  It is normal and perfect if I test with HTTP, The throughput can reach to
> 950Mbps.
>
>
>
> Which tools you are using to measure throughput?
>
> There are 2 ways I used,
>
>  1 check the log summary form cur-loader like this”
> Ti:5261372B/s,To:18375B/s”
>
> 2 check real time traffic speed on switch with connected test PC and HTTP
> server
>
>
>
> What happens, if you try just to ftp some large file between the machines?
>
> NO test
>
> What about CPU usage at both client and server?
>
> Both they are busy, about 80%
>
> Which HTTP server is in use?
>
>  Apache/2.2.21
>
> Have you looked into logs of curl-loader and your web-server?
>
> Checked log, not find abnormal issue.
>
>
>
>
>
> Today, I used Loadrunner11 to simulate https traffic with same environments
> (same apache server) , it can reach to 110Mpbs. But still only get  800kbps
> with cur-loader.
>
>
>
>
>
>
>
>
>
>
>
> Best Regards,
>
> CK
>
> #8042
>
>
>
> From: Robert Iakobashvili [mailto:cor...@gm...]
> Sent: Tuesday, September 27, 2011 1:19 PM
> To: curl-loader-devel
> Subject: Re: HTTPS throughput too low
>
>
>
> Dear CK Zhang,
>
> On Mon, Sep 26, 2011 at 5:01 AM, CK Zhang <ck...@fo...> wrote:
>
>
>
> I want to get high https stream with curl loader, but the Https throughput
> is about 800kbps between two PC, Http throughput can reach 950Mbps in that 2
> pcs, I do know if some have experience like this, and get a high https
> throughput with curl-loader, Thanks for any supports and help!!
>
>
>
>
>
> Here is my configuration:
>
>
>
> PC1:CPU Inter E2200, Mem 2G, 1000M NIC
>
> OpenSSL:
>
> openssl-devel-1.0.0-4.el6_0.2.x86_64
>
> openssl-1.0.0-4.el6_0.2.x86_64
>
> openssl-perl-1.0.0-4.el6_0.2.x86_64
>
>
>
> curl-loader-0.53
>
>                                ########### GENERAL SECTION
> ################################
>
> BATCH_NAME= Apach
>
> CLIENTS_NUM_MAX=400
>
> CLIENTS_NUM_START=100
>
> CLIENTS_RAMPUP_INC=10
>
> INTERFACE   =eth2
>
> NETMASK=16
>
> IP_ADDR_MIN= 172.16.76.150
>
> IP_ADDR_MAX= 172.16.246.250  #Actually - this is for self-control
>
> CYCLES_NUM= -1
>
> URLS_NUM= 1
>
>
>
> ########### URL SECTION ####################################
>
>
>
> URL=https://172.16.76.142/was/100KB.txt # the size of 100KB.txt is 100KB
>
> #URL=http://localhost/ACE-INSTALL.html
>
> URL_SHORT_NAME="local-index"
>
> REQUEST_TYPE=GET
>
> TIMER_URL_COMPLETION = 0      # In msec. When positive, Now it is enforced
> by cancelling url fetch on timeout
>
> TIMER_AFTER_URL_SLEEP =1000
>
> ~
>
>
>
> PC2. Works as Webserver,CPU Intel E7600,Mem 4G, 1000M NIC
>
> Server version: Apache/2.2.21 (Unix)
>
> Server built:   Sep 21 2011 16:19:43
>
> openssl-devel-1.0.0-4.el6_0.2.x86_64
>
> openssl-1.0.0-4.el6_0.2.x86_64
>
> openssl-perl-1.0.0-4.el6_0.2.x86_64
>
>
>
>
>
> Interesting.
>
>
>
> What happens if you try HTTP? Does it impact throughput?
>
>
>
> Which tools you are using to measure throughput?
>
>
>
> What happens, if you try just to ftp some large file between the machines?
>
>
>
> What about CPU usage at both client and server?
>
> Which HTTP server is in use?
>
>
>
> Have you looked into logs of curl-loader and your web-server?
>
>
>
> --
> Regards,
> Robert Iakobashvili, Ph.D.
>
>
>
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-- 
Regards,
Robert Iakobashvili, Ph.D.

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