no1wudi commented on PR #8641:
URL: https://github.com/apache/nuttx/pull/8641#issuecomment-1445340530

   > > it's more simple to replace lib_rawoutstream_s with some buffer stream:
   > > 
https://github.com/apache/nuttx/blob/master/libs/libc/stdio/lib_vdprintf.c#L57
   > 
   > This approach has only few improvements since some apps like "ps" call 
vdprintf frequently, will cause many samll strings.
   
   Maybe my test method is wrong, I find it's fast enough for shell usage, I'll 
check it again


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