ranxuxin001 opened a new issue, #9140:
URL: https://github.com/apache/apisix/issues/9140
### Description
Hello everyone,
My apisix 2.9 has more than 15 thousand routes currently. And when I use
the script to update large amount of routes frequently(sleep 0.5 to 5 seconds),
my apisix costs cpu near 100%(user). It leads to request apisix slowly.
I've read some source code of apisix. When update a route, the apisix
firstly search relevant node in radix tree. And secondly insert node in radix
tree. But most of my routes has the same uri "/*" . The radix tree should has a
few nodes, but it has an array with many routes which has the same uri. After
that it updates the configuration of the matched route according to host, uri,
header etc. So I doubt finding matched route in a long array causes much more
cpu time than updating the node in the radix tree. By the way, it there any cpu
performance tool suggusted? How about openresty xray?
Is there any strategy to improve the apisx's performance for updating or
creating routes frequently while large amount of routes already exist in the
apisix, please? Any suggest is appreciated.
Best Regards,
Ranxuxin
### Environment
- APISIX version (run `apisix version`): apisix-2.9-0.el7.x86_64
- Operating system (run `uname -a`): Linux 3.10.0-862.el7.x86_64 #1 SMP
Fri Apr 20 16:44:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`): nginx
version: openresty/1.19.9.1
built by gcc 9.3.1 20200408 (Red Hat 9.3.1-2) (GCC)
built with OpenSSL 1.1.1k 25 Mar 2021
TLS SNI support enabled
configure arguments: --prefix=/usr/local/openresty/nginx --with-cc-opt='-O2
-DNGX_LUA_ABORT_AT_PANIC -I/usr/local/openresty/zlib/include
-I/usr/local/openresty/pcre/include -I/usr/local/openresty/openssl111/include'
--add-module=../ngx_devel_kit-0.3.1 --add-module=../echo-nginx-module-0.62
--add-module=../xss-nginx-module-0.06 --add-module=../ngx_coolkit-0.2
--add-module=../set-misc-nginx-module-0.32
--add-module=../form-input-nginx-module-0.12
--add-module=../encrypted-session-nginx-module-0.08
--add-module=../srcache-nginx-module-0.32 --add-module=../ngx_lua-0.10.20
--add-module=../ngx_lua_upstream-0.07
--add-module=../headers-more-nginx-module-0.33
--add-module=../array-var-nginx-module-0.05
--add-module=../memc-nginx-module-0.19 --add-module=../redis2-nginx-module-0.15
--add-module=../redis-nginx-module-0.3.7 --add-module=../ngx_stream_lua-0.0.10
--with-ld-opt='-Wl,-rpath,/usr/local/openresty/luajit/lib
-L/usr/local/openresty/zlib/lib -L/usr/local/openresty/pcre/lib -L/usr/loc
al/openresty/openssl111/lib
-Wl,-rpath,/usr/local/openresty/zlib/lib:/usr/local/openresty/pcre/lib:/usr/local/openresty/openssl111/lib'
--with-cc='ccache gcc -fdiagnostics-color=always' --with-pcre-jit
--with-stream --with-stream_ssl_module --with-stream_ssl_preread_module
--with-http_v2_module --without-mail_pop3_module --without-mail_imap_module
--without-mail_smtp_module --with-http_stub_status_module
--with-http_realip_module --with-http_addition_module
--with-http_auth_request_module --with-http_secure_link_module
--with-http_random_index_module --with-http_gzip_static_module
--with-http_sub_module --with-http_dav_module --with-http_flv_module
--with-http_mp4_module --with-http_gunzip_module --with-threads --with-compat
--with-stream --with-http_ssl_module
- etcd version, if relevant (run `curl
http://127.0.0.1:9090/v1/server_info`): 3.5
- APISIX Dashboard version, if relevant:
- Plugin runner version, for issues related to plugin runners:
- LuaRocks version, for installation issues (run `luarocks --version`):
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