Chrome Network Parameters

[Ahmed Said]

Hi,

because of some tests I am interested to change some network parameters in Chrome browser code before building. 

these parameters are available in Firefox through about:config but not available for chrome.

1- network.http.connection-retry-timeout: used to manage the browser retry time out to start a new TCP connection.

2- network.http.speculative-parallel-limit: used to manage the behavior of the browser to establish speculative connections.

3- network.http.max-connections: maximum number of established TCP connections

4- network.http.max-persistent-connections-per-server: maximum number of TCP connection per domain.

I want to know where to find these modules in the source code in term to change as per my required parameters.

Thanks,

[Chris Bentzel]

Many of these tunable parameters are in ClientSocketPoolManager:

https://code.google.com/p/chromium/codesearch#chromium/src/net/socket/client_socket_pool_manager_impl.cc&sq=package:chromium&l=60&rcl=1387196362

[note codesearch.chromium.org is a great way to explore the code base]

You will need to rebuild Chrome with this rather than be able to
dynamically tune.

Good luck!

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[Ahmed Said]

Hello,

Thanks for reply, I managed to change these parameters and build the browser. still having a problem with TCP connections over SSL with ni persistent connection enabled ; the browser is opening number of connections double the number of objects i.e. if I have a webpage with 10 objects, the browser will establish 20 TCP connections when it is accessed over SSL with no persistence connection enabled from the server.

I am not able to find any explanation to this behavior yet.

[Yuri Gaben]

about:config missing in last google chrome... how chsnge http-max-connection ???

[PhistucK]

about:config was never supported in Chrome. The closest thing to it is about:flags (or plain command line flags), but it does not control the features this thread discusses.

It looks like you need to build your own customized edition of Chromium in order to change this value.

☆PhistucK

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