hanjian

bpftrace unable to get userstack symbols, only address

9

### What reproduces the bug? ``` #include #include #include void func() { int* i = malloc(4); puts("xxxx"); sleep(1); free(i); } int main(void) { while(1) { func(); } } ``` `gcc...

you can write big file by big pipesize

ngx_http_lua_upstream with tengine RBTREE performance optimization

1

Fork the [ngx_http_lua_upstream](https://github.com/openresty/lua-upstream-nginx-module) And optimize performance O(n) search to O(logn) RBT search

WIP: online cpu can be bind by sched_getaffinity()

2

nginx's automatic core binding will only bind the cores sequentially from head to tail, and will not obtain the current online cpu. https://forum.nginx.org/read.php?29,279564,279569#msg-279569 Similar needs and discussions in the nginx...

istio support pilot-discovery KubeController to use server side filter

25

(This is used to request new product features, please visit for questions on using Istio) **Describe the feature request** We have a discoverySelector that uses an objectFilter, which in turn...

Improve Performance For "MaxLineSize" and Concurrency of ParseString(line)

2

https://github.com/martin-helmich/prometheus-nginxlog-exporter/blob/f09c9dc27715b139c4ca97917fbd736905649e20/tail/tailer.go#L44 add ```MaxLineSize: 65534``` to improve Throughput of reading file? https://github.com/martin-helmich/prometheus-nginxlog-exporter/blob/f09c9dc27715b139c4ca97917fbd736905649e20/main.go#L372 to Concurrent Execute ParseString(line) in this loop? over 25000 QPS access.log, exporter unable to update metrics accurately. Tks.

IstioEndpoint Record ResourceVersion

1

(This is used to request new product features, please visit for questions on using Istio) **Describe the feature request** Istio Config CRs have resourceVersion, but istioEndpoint doesn't have resourceVersion. So...