help request: I test the performance between apisix and openresty alone, apisix performance is poor (qps 22000 vs 35000), I think lua code consumes much performance.

[jiangdongzi]

Description

11.38% [kernel] [k] do_softirq 2.34% libc-2.17.so [.] memcpy_ssse3_back 1.68% openresty [.] ngx_hash_find 1.65% libc-2.17.so [.] libc_writev 1.58% libluajit-5.1.so.2.1.ROLLING [.] lj_BC_TGETS 1.53% libpthread-2.17.so [.] libc_recv 1.31% [kernel] [k] system_call_after_swapgs 1.18% [kernel] [k] _raw_spin_unlock_irqrestore 1.03% libluajit-5.1.so.2.1.ROLLING [.] lj_str_new 0.94% libc-2.17.so [.] _int_malloc 0.90% [kernel] [k] copy_user_enhanced_fast_string 0.87% libluajit-5.1.so.2.1.ROLLING [.] hashkey.isra.0 0.83% libc-2.17.so [.] memset_sse2 0.81% openresty [.] ngx_http_get_indexed_variable 0.76% libc-2.17.so [.] _GIgetsockopt 0.76% [kernel] [k] tcp_ack 0.66% openresty [.] ngx_http_parse_header_line 0.62% openresty [.] ngx_vslprintf 0.62% libluajit-5.1.so.2.1.ROLLING [.] gc_sweep 0.58% openresty [.] ngx_palloc 0.57% [kernel] [k] ipt_do_table 0.56% [kernel] [k] fget_light 0.56% [kernel] [k] _raw_qspin_lock 0.54% openresty [.] ngx_http_proxy_create_request 0.53% libluajit-5.1.so.2.1.ROLLING [.] lj_tab_newkey 0.52% libluajit-5.1.so.2.1.ROLLING [.] lj_alloc_malloc 0.48% libluajit-5.1.so.2.1.ROLLING [.] lj_alloc_free 0.48% [kernel] [k] netif_receive_skb_core 0.48% libluajit-5.1.so.2.1.ROLLING [.] lj_BC_JLOOP 0.47% openresty [.] ngx_http_upstream_process_header 0.47% openresty [.] ngx_http_log_escape.isra.0 0.46% [kernel] [k] pvclock_clocksource_read 0.46% openresty [.] ngx_http_parse_request_line 0.46% openresty [.] ngx_http_log_handler 0.45% libc-2.17.so [.] _int_free 0.45% [kernel] [k] tcp_recvmsg 0.44% libluajit-5.1.so.2.1.ROLLING [.] lj_BC_CALL 0.44% libluajit-5.1.so.2.1.ROLLING [.] propagatemark 0.43% [kernel] [k] tcp_transmit_skb 0.42% libc-2.17.so [.] memcmp_sse4_1 0.41% openresty [.] ngx_epoll_process_events

from perf top print

Environment

• APISIX version (run apisix version):
• Operating system (run uname -a):
• OpenResty / Nginx version (run openresty -V or nginx -V):
• etcd version, if relevant (run curl http://127.0.0.1:9090/v1/server_info):
• APISIX Dashboard version, if relevant:
• Plugin runner version, for issues related to plugin runners:
• LuaRocks version, for installation issues (run luarocks --version):

[jiangdongzi]

no plugin is enabled , error log level is warn