Existing users, 
While I really like the "Picasa for Mac" concept also this version 3.0.5 takes up to 90 percent of my CPU (MacBookPro Core2Duo) without letting me know why.
That makes Picasa useless for me. Even researching on that issue on the web and rebuilding Picasa's database didn't help. Also Google didn't clear what's going on in the background and why Picasa takes such a huge amount of CPU (which it didn't in earlier pre 3.x versions). What a pity :-(
That's why I had to rate it that negative.
Picasa
Organize, edit, and share pictures locally or online.
Version: 3.5.2.90
Picasa 3.0.5 takes up to 90 percent of my CPU
Feedback Type: Review
Contributed by: jguentert Tuesday, May 05 2009 @ 01:29 AM PDT
Product Platform: MacOSX
Used Product For: Less than a month
Recommend Product: NO
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Comments
Picasa 3.0.5 takes up to 90 percent of my CPU - wonderama
Same issue here. I have a Core2Duo Macbook and I was hearing the fan revving constantly like a jet engine, and the notebook felt hot to the touch. I looked at the Activity Monitor and even in the background Picasa was stressing my system. Once I shut down Picasa, the Macbook CPU load was low and the fan was silent again.It's a shame because I prefer the interface and performance much better than iPhoto or Canon Imagebrowser. What I like about Picasa is that it deals with photos where they are stored rather than having to import it in its own file system.
Saturday, June 27 2009 @ 07:28 AM PDT
Picasa 3.0.5 takes up to 90 percent of my CPU - jguentert
UPDATE: Since even today's update to Picasa 3.0.5 still didn't fix the unacceptable CPU problem I downgraded to Picasa for Mac version 3.0.0.310 and now everything is fine. No more CPU hogs, a highly recommendable approach for all affected users :-)Reply to This
Tuesday, May 05 2009 @ 07:03 AM PDT