stack/heap information

Flamingo

You know the stack used info provided by the codec engine in the trace output? (see example:)

@12,027,596us: [+5 T:0x4001cf50] CE - Engine_deleteNode(0x4a850): algName = vqm_results, algHandle = 0xc25fad20, stack size = 100000, stack used = 4027(5%)

Is it possible to get similar information about other tasks? I've put calls in to TSK_checkstacks, but it doesn't let me know how close things are to overflowing.

Also, is there some function that could give me similar heap info?

Since I'm running on LInux, my debug info comes from the trace output.

over 16 years ago

0 Chris Ring over 16 years ago

TI__Genius 17205 points

See Codec Engine's Server_getNumMemSegs() and Server_getMemStat() APIs for heap info.

CE provides the stack info by calling BIOS's TSK_stat() API during codec deletion (see ti/sdo/ce/osal/bios/Thread_BIOS.c::Thread_stat() implementation).

Chris

0 Flamingo over 16 years ago in reply to Chris Ring

Expert 2290 points

Thanks. I've got the stack info, but the Heap calls require a Server_Handle.

I have a server, so I'm sure there must be a handle, but I'm not sure how to find it.

For the task, I called TSK_self. I didn't see anything similar in Server.h. How can I get the Server_Handle?

0 Chris Ring over 16 years ago in reply to Flamingo

TI__Genius 17205 points

Engine_getServer();

This is documented in the API Reference Guide (link in the release notes) and here:

http://wiki.davincidsp.com/index.php/Codec_Engine_Application_Developers_Guide#The_Server_APIs

Chris

0 Flamingo over 16 years ago in reply to Chris Ring

Expert 2290 points

Engine_getServer requires an Engine Handle. I have an engine handle on the app side, but not on the server side. Do I have to make this call from the app side? I was trying to get the info from the server side.

0 Chris Ring over 16 years ago in reply to Flamingo

TI__Genius 17205 points

Yes, these Server API's are only available from the app side.

If you're already running code on the DSP side, you can call BIOS's MEM_stat() API to get heap statistics.

Chris

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stack/heap information