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hoytech / vmtouch

Portable file system cache diagnostics and control
https://hoytech.com/vmtouch/
BSD 3-Clause "New" or "Revised" License
1.79k stars 210 forks source link

container use vmtouch mlockall file for linux #96

Closed zhuchubo closed 2 years ago

zhuchubo commented 2 years ago

i use a k8s daemonset container contains vmtouch, while a k8s node joined the cluster, daemonset setup and start use "vmtouch -dl" . The file is on nfs or hostpath, and mount to the pod. But i seen the vmtouch page stuck in 5% and not grow any more. did i use vmtouch and docker contianer wrong ? Please help

2022/01/17 16:13:56 Checking model file: /NAS/models/ENGLM004.binary.enc, check interval: 60 2022/01/17 16:14:56 Files: 1 Directories: 0 Resident Pages: 338657/6350920 1G/24G 5.33% Elapsed: 0.13681 seconds

2022/01/17 16:14:56 Checking model file: /NAS/models/ENGLM004.binary.enc, check interval: 60 2022/01/17 16:15:56 Files: 1 Directories: 0 Resident Pages: 338657/6350920 1G/24G 5.33% Elapsed: 0.13725 seconds

zhuchubo commented 2 years ago

Linux ubuntu@ss-dev-cpu-8c32g-0:/NAS/models$ cat /etc/issue Ubuntu 18.04.4 LTS \n \l k8s version: Server Version: version.Info{Major:"1", Minor:"18+", GitVersion:"v1.18.4"

zhuchubo commented 2 years ago

due to k8s resource limit memory. even though daemonset does not set, but the namespace have set default memory limit range. Revert limit range, vmtouch lock file to memory works.

hoytech commented 2 years ago

Thanks for the report, and for posting the resolution!