Tick Frequency

[StuartP119]

Hello, I am seeing an issue with the tick frequency loading down to 80hz no mater how I have it set when running a simulation. Typically I set it for testing at 8hz for troubleshooting and stepping thru logic while building computer circuits, however I noticed once I was completed my recent circuit and turned it up to 512hz while the simulation is running it slows down and floats between a display of 80hz to 90hz regardless of how I have it set.

For troubleshooting purposes I did try testing circuits with a lesser number of components but also saw it there to a slightly smaller degree. I next tried building a much simpler circuit with an 8 bit ALU, 1 RAM and 1 ROM and still noticed the problem.

My next step was to take the simple circuit and try it in the last "Church" release and it worked as expected with the higher speeds available. What ever the issue is it appears to become more noticeable with a higher number of components.

Could this be related to Java I am running version 8 update 171 on Windows 7? I am using a fairly new computer Lenovo W541 and don't see any performance issue with it when this problem occurs. My CPU stays below 30%, and ram is only 28% full and the drive I/O seems to be normal.

Any thoughts or possible areas to pursue would be greatly appreciated.

[AndreaNeti]

Send me all the files you used so I can test and debug them Il Ven 15 Giu 2018, 17:12 StuartP119 <[email protected]> ha scritto:

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Hello, I am seeing an issue with the tick frequency loading down to 80hz no mater how I have it set when running a simulation. Typically I set it for testing at 8hz for troubleshooting and stepping thru logic while building computer circuits, however I noticed once I was completed my recent circuit and turned it up to 512hz while the simulation is running it slows down and floats between a display of 80hz to 90hz regardless of how I have it set. For troubleshooting purposes I did try testing circuits with a lesser number of components but also saw it there to a slightly smaller degree. I next tried building a much simpler circuit with an 8 bit ALU, 1 RAM and 1 ROM and still noticed the problem. My next step was to take the simple circuit and try it in the last "Church" release and it worked as expected with the higher speeds available. What ever the issue is it appears to become more noticeable with a higher number of components. Could this be related to Java I am running version 8 update 171 on Windows 7? I am using a fairly new computer Lenovo W541 and don't see any performance issue with it when this problem occurs. My CPU stays below 30%, and ram is only 28% full and the drive I/O seems to be normal. Any thoughts or possible areas to pursue would be greatly appreciated. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#6>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AakZAwzTusfobmd1NN6SKMFL8sq_7KzSks5t887ggaJpZM4Upudp> .

[StuartP119]

Good Morning,

Attached are the logisim exe I am using and the necessary files to run the circuit PEC-1 Computer.
Logisim Speed Issue.zip

I have also tried running the Snake and Tetris examples from the web and see the same problem with them as well on both of the computers I use.

The folder layout contains the libraries, my circuit PEC-1 Computer, and the Samples I down loaded from the Web.

Note one of my machines is the Windows 7 as in the first email and my second machine is a Windows 10 with Java 10.0.1 on it. Both are having the exact same issue.

I have also noticed the Windows 10 machine did not load down the tick frequency as much and it is actually a slower machine.

I do appreciate any help you can give me.

Thanks and have a great weekend,
-Stuart