CEF 3 Memory footprint

[veeravenkatraja]

We have leveraged CEF3 to host multiple web applications in one desktop shell. And now we have about 14 applications loaded through this. but if you look at the memory consumptions its alarming! we could see close 850 MB with 1 browser process and 7 render processes. Whereas, if i load the same in chrome window, it doesn't cross more than 400 MB. which is 50% of improvement. Could anyone please guide us on best practices to reduce memory through CEF3 ?

[magreenblatt]

What OS and CEF3 version? Are you creating multiple browsers? If so, are all of the browsers visible at the same time?

[veeravenkatraja]

What OS ?
Windows 7

What CEF3 version ?

did you mean, which CEF3 build ?

Are you creating multiple browsers?

Yes

If so, are all of the browsers visible at the same time?

Well, yes. Currently, we have not enabled pre-loading that means we dont load all the browsers at once. however, you may choose to pick all the instances.

[magreenblatt]

did you mean, which CEF3 build ?

Yes. For example, 3.2272.2077.

dIf so, are all of the browsers visible at the same time?

Well, yes. Currently, we have not enabled pre-loading that means we dont load all the browsers at once. however, you may choose to pick all the instances.

That's likely the difference. Google Chrome generally only has one browser (tab) visible at the time, which significantly reduces the memory usage of the non-visible browsers. Try creating multiple Google Chrome windows that are all visible at the same time and then compare memory usage.

[veeravenkatraja]

We use 3.2062.1898

I couldnt actually see much of a difference though when i simulated this through chrome instance. Here is the report of my comparison,

Two apps in one dedicated chrome instance with two chrome tabs

Two apps in one dedicated chrome instance with two chrome tabs

2chrome1tabeach.jpg (58.13 KiB) Viewed 12133 times

Two apps in two dedicated chrome instances

Two apps in two dedicated chrome instances

1chrome2tabs.jpg (53.35 KiB) Viewed 12133 times

If you still think, Active & Inactive can improve performance is there a way that i can get this through CEF3. so that, even if the screen is on user view - only when it is brought to focus we make that tab active ?

[magreenblatt]

We use 3.2062.1898

This is Chromium 37. What version of Google Chrome are you testing with? If it is not Google Chrome 37 then you are not making a meaningful comparison.

If you still think, Active & Inactive can improve performance is there a way that i can get this through CEF3. so that, even if the screen is on user view - only when it is brought to focus we make that tab active ?

No, hidden browsers do not render.