I have dump the rust application memory and using the jeprof to genreate the pdf, this is the command look like:

[root@iZm5e2jhfbrshckqh6qdbuZ dump]# jeprof --show_bytes --pdf ./texhub-server /data/k8s/reddwarf-pro/texhub-server-service/dump/profile.out > profile.pdf
Using local file /data/k8s/reddwarf-pro/texhub-server-service/dump/profile.out.
The first profile should be a remote form to use /pprof/symbol

the pdf output file size is zero.

[root@iZm5e2jhfbrshckqh6qdbuZ dump]# ls -alh
total 25K
drwxr-xr-x  2 root root 4.0K 7  25 22:09 .
drwxr-xr-x 10 root root 4.0K 12 31 2023 ..
-rw-r--r--  1 root root  24K 7  25 21:30 profile.out
-rw-r--r--  1 root root    0 7  25 22:20 profile.pdf

Am I missing something? why the output pdf is zero and without any error message output?