Run ecapture -m text cost unexcepted cpu/memory resource. After using the tool perfto analyze,(*HTTP2Response).detect consumed a lot of resources. After removing this function (*HTTP2Response).detect and **(HTTP2Request).detect and recompiling the ecapture to run testcase, the performance was significantly improved.
Small files access https server with high concurrency, construct 50Mbps traffic, average memory 550M, maximum memory 677.66M. After optimization (*HTTP2Response).detect and *(HTTP2Request).detect , memory is reduced to 293.016M

Linux Server:

Device: VM
OS: [ctyunos 2.0.1]
Arch: 4.19.90-2102.2.0.0062.ctl2.x86_64 #1 SMP Thu Mar 10 03:34:36 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Kernel Version: 4.19

1. modify makefile compile option to obtain symbol information
2. perf record $(pidof ecapture)
3. perf report