output=<filename>[,sizem[,<generations>]]

Use the output option to send trace data to <filename>. If the file does not already exist, it is created automatically. If it does already exist, it is overwritten.

Optionally:
Note: When tracing to a file, buffers for each thread are written when the buffer is full or when the JVM terminates. If a thread has been inactive for a period of time before JVM termination, what seems to be 'old' trace data is written to the file. When formatted, it then seems that trace data is missing from the other threads, but this is an unavoidable side-effect of the buffer-per-thread design. This effect becomes especially noticeable when you use the generation facility, and format individual earlier generations.

Examples



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