Comment 4 for bug 200415

After adding those lines to preferences.xml (on an Intel Core 2 Duo, iMac, OS 10.6), I timed how long an illustration with blur took to zoom up one step in 0.47. It was exactly the same speed/time as without the multi-threading enabled. Using the same illustration, I also compared the time it took to "select all in all layers," and this too was the same time with or without multi-threading enabled. Are these tests appropriate, or would speed improvements be found in some other ways when using blur and multi-threading? Or perhaps there is some error in how I attempted to enable the multi-threading.

Note: preferences.xml on Mac is found by the steps shared by zipe here: