[JBgrim]

Safari is using 50%-70% CPU while downloading large files which is reducing the battery life of my 15" Albook.

Screenshot of TOP and download manager. Also, look at the ram usage

Is this normal behaviour for Safari? Thanks.

[Zimphire]

I've never had it peg 50%.. but yeah..

BTW your sig is against the nazi guidelines.

[zachs]

Originally posted by JBgrim:
Safari is using 50%-70% CPU while downloading large files which is reducing the battery life of my 15" Albook.

Screenshot of TOP and download manager. Also, look at the ram usage

Is this normal behaviour for Safari? Thanks.

Does it go up that high when downloading...say...one file?

[nforcer]

Originally posted by JBgrim:
Is this normal behaviour for Safari? Thanks.

Yes. I've noticed on many occasions that Safari is not very efficient (or reliable) with downloads and CPU time (and FTP stuff it sometimes passes to the Finder can really suck). Animating progressbars and writing to files takes quite a bit of CPU time for Safari.

If you need to download a lot of files and don't want something that uses a lot of CPU time, I recommend the command-line utility CURL. Launch Terminal, type "curl -O " (that's an "oh", not a zero, and be sure to include the space after it) and then paste the URL of the file and press return. Hide the Terminal while it downloads for slightly less CPU-time taking.

CURL downloads files to the current working directory (usually your home folder), but you can change this by cd'ing to whatever folder you want before running the command.

You can also do some really cool tricks with CURL, like download a bunch of files with one command. Just keep adding " -O someURLGoesHere" to the end of the line, and it will download everything in the order you added the file, one socket at a time. Clearer example: "curl -O http://www.someURL.com/someFile.dmg -O http://www.someOtherURL.com/randomFile2.dmg -O http://www.someNewURL.com/anotherFile3.dmg" downloads someFile.dmg, randomFile2.dmg, and anotherFile3.dmg one file at a time.

And you can download a bunch of sequentially named files with one command. For example, you can download hotLesbianAction1.jpg thru hotLesbianAction92.jpg by using "curl -O http://www.theHotChix0rSite.com/images/hotLesbianAction[1-92].jpg". This looks like it would be especially timesaving for you, judging from the screenshot you provided.

And if copy and v... err, paste, is annoying for you, don't forget you can drag and drop URLs from Safari and other apps to the Terminal.

Hope this helps.

[madmacgames]

I've noticed this myself. It is rather annoying to say the least, especially if you are trying to do something else as well that actually needs a good chunk of the CPU.

[ul1984]

id guess its the progressbars that use most of the cpu, try closing the Downloads window, while downloading, dont worry the downloads will continue even witht he window closed.

[madmacgames]

Originally posted by ul1984:
id guess its the progressbars that use most of the cpu, try closing the Downloads window, while downloading, dont worry the downloads will continue even witht he window closed.

I thought so too, but when closing the download window, Safari's CPU usage doesn't drop by much. I just tried it downloading 10 files 30MB each, with top open in terminal, and it went from ~ 50% CPU with the downloads window open to ~40% CPU with it closed. IMO, still way too much CPU usage for downloading some files.

[Holigen]

Its probably the updating of the icon and sending that information to the downloading file. At least thats all I can come up with, its never gotten that high for me when downloading.

Now, those animated smilies down in the reply form...

[nforcer]

Originally posted by Holigen:
Now, those animated smilies down in the reply form...

Really, that's a problem that needs to be fixed already (or at least give us a preference to turn them off or only show them so many times, like Omniweb). Problem still exists in 1.3dp1.

[Holigen]

PithHelmet