Why the memory usage keeps slowly fluctuating and increasing

[zhjdhx]

When I use go-zero, I added a route "ok". After starting the service, even without any client requests, the memory usage keeps slowly fluctuating and increasing. After approximately a day, it continues to fluctuate but no longer increases. What could be the reason for this? When using gin, there is almost no fluctuation in memory usage.

[kevwan]

I recommend you to do a memory profiling. And upload the file if no sensitive info.

Right now, I have no idea on this. We didn't have this kind of issue.

[zhjdhx]

Okay, let me reproduce and capture the pprof. Expected to provide next week

[zhjdhx]

test code is https://github.com/zeromicro/zero-examples.git zero-examples/http/demo
rss is grow 5kb after one day whithout any request:

root 40203 0.1 1.0 1685272 20624 pts/0 SNl 16:26 0:00 ./demo some minutes after start
root 40203 0.1 1.1 1759324 21656 pts/0 SNl 16:26 0:00 ./demo some minutes after start by pprof
root 40203 0.1 1.3 1759580 26880 pts/0 SNl Jun17 1:05 ./demo one day after after start
root 40203 0.1 1.3 1759580 26084 pts/0 SNl Jun17 1:05 ./demo one day after after start by pprof

the go-zero pprof file is in https://f.ws59.cn/f/edu6fambotp 24h valid