Why does my xdebug debug trace file suddenly rise by 1.6GB? How to configure it?

I just learned to use xdebug, and I found it powerful but difficult to control.
take a look at my configuration:

[xdebug]
zend_extension=xdebug.so
xdebug.remote_host=192.168.6.159
xdebug.remote_enable=On
xdebug.remote_port=9001
xdebug.remote_handler="dbgp"
xdebug.remote_mode="req"
xdebug.idekey="phpstorm"
;xdebug.remote_connect_back=1
;xdebug.auto_autostart=1
xdebug.remote_log=/data1/logs/xdebugTrace/trace.log

;xdebug.auto_trace=1
xdebug.profiler_enable=on
xdebug.trace_output_dir="/data1/logs/xdebugTrace/trace_output_dir"
xdebug.profiler_output_dir="/data1/logs/xdebugTrace/trace_output_dir"
xdebug.trace_options=1
xdebug.trace_output_name=trace.%c

is it because I opened the auto_trace configuration that my log file rose to 1.6G in a few minutes? The following trace.1949388597.xt,
is too scary. I don"t have much traffic in my development environment, but why is there so much data here? Ask for advice?

    240 -rw-r--r--. 1 nobody nobody     242688 4  20 18:12 cachegrind.out.16342
    244 -rw-r--r--. 1 nobody nobody     246114 4  20 18:18 cachegrind.out.16343
    244 -rw-r--r--. 1 nobody nobody     246068 4  20 18:18 cachegrind.out.16404
 178652 -rw-r--r--. 1 nobody nobody  182938526 4  20 18:19 cachegrind.out.16405
 216124 -rw-r--r--. 1 nobody nobody  221308259 4  20 18:23 cachegrind.out.16415
    244 -rw-r--r--. 1 nobody nobody     245892 4  20 18:23 cachegrind.out.16416
    244 -rw-r--r--. 1 nobody nobody     245900 4  20 18:23 cachegrind.out.16423
4202368 -rw-r--r--. 1 nobody nobody 2380530850 4  20 18:23 trace.1949388597.xt
   4096 -rw-r--r--. 1 nobody nobody    2621997 4  20 18:23 trace.2986568079.xt

question 2, I installed the webgrindGUI tool. Why is this shown? the function name is not displayed:

Mar.04,2021

as long as performance analysis and automatic tracking can be turned off, comment out

;  
;xdebug.profiler_enable=on

;  
;xdebug.auto_trace=on 

I found the reason. I think the webgrindGUI version is too low. After reinstalling version 1.5, I can display the function name

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