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Photoshop CS5 diglloyd Benchmarks
See Configuring Photoshop for how to configure Photoshop for fastest results.
download these actions; see the updated page for Photoshop CS6 and Photoshop CC.
The small/medium/huge tests are implemented using Photoshop “actions” — scripts that can be played to execute a series of actions.
The small/medium/huge tests were not designed to test the speed of filters like Unsharp Mask, Gaussian Blur, etc: those are CPU-constrained operations.
The small/medium/huge are designed to force Photoshop into using its scratch volume(s), to mimic behavior when working with large image files, images with many layers, or many images at once. Speed under such conditions is governed mainly by available memory and the speed of the scratch volume, not CPU speed.
- Generates an 8.4GB scratch file using a 14,000-pixel-wide image. Not used for testing in this article, but is appropriate for testing smaller workloads.
- Generates a 15.7GB scratch file using a 20,000-pixel-wide image. This is about as large a challenge as is suitable for a MacBook Pro (unless you have plenty of patience).
- Generates a 56GB scratch file using a 40,000-pixel-wide image. Suitable for testing extreme cases with the Mac Pro, most dependent on scratch drive performance.
- This test is a CPU-constrained test, but generally needs 8GB of memory to be so. It is not designed for wimpy 4GB systems, but it will run there.
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This section details how to download, load, and run the diglloyd benchmark actions.
Download, then install the diglloyd benchmark actions ( “diglloydPhotoshopBenchmarks.atn”) as follows.
Use the Photoshop diglloydPhotoshopBenchmarks.atn after downloading, as shown above.palette to load the
After loading, you should see a number of actions, including, , and . Be aware that can take a very long time to complete on wimpy systems.
Running a test
You can run any of the diglloyd benchmarks using runDiglloydBenchmark.app.
Verify in the Performance tab that Photoshop is configured appropriately and that you have chosen the desired scratch volume(s). Quit and relaunch Photoshop if you make any changes.
To obtain consistent and repeatable results, the Mac should be in a reproducible state before running the tests:
- Reboot, then allow the system to stabilize for 30 seconds or so (a variety of programs are active for at least a short while after the system starts up).
- Turn off Time Machine so it doesn’t start backing up in the middle of a test. Don’t forget to turn it back on when done!
- Drag your test volume (scratch disk) into Spotlight’s so that the Spotlight doesn’t try indexing the test volume during the test. tab
- Quit any applications you have running (Mail, Safari, etc). These consume resources that can alter the test results.
The system should now be in an idle state with nothing running except the Finder. Verify this by opening Activity Monitor.
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Lloyd recommends 32GB RDIMM modules for most users (more expensive LRDIMMS are for 512GB or more).
Running is automated
See the screen shots at right for the dialogs that appear.
The test is automated, but does need to create and save a test file; save this anywhere you like.
It ’s a good idea to keepopen, and watch for any other background programs that might start running while the test is in progress. Results are invalid if other programs are vying for memory and disk access.
Checking scratch size
After the test is done, you can also verify that the scratch file size is as expected.
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