performancecounter - Gwan report.c statistics -


i testing on g-wan server performance , it's amazing!!! here output report.c

requests
all: 5,725 (6.06% of cache misses)
http: 66 (1.15% of requests)
errors: 70 (1.22% of requests)
csp: 5,650 (98.69% of requests) exceptions: 1

connections
accepted: 4,717 (1.21 requests per connection)
closed: 4,372
timeouts: 682 (14.46%) accept:682 read:0 slow:0 build:0 send:0 close:0
busy: 345 (waiting: 334 reading: 9 replying: 2 sending: 0 pushing: 0 relaying: 0 closing: 0)

i found errors rate seem quite high, , there exceptions occur on csp too, tell me did "errors" mean , how avoid it? thanks!

the "errors" rate seem quite high

that's http errors (wrong requests coming client, not found resources, etc. - @ error.log file trace).

the way avoid http errors prevent clients connecting server.

if can't live "high rate of http errors" of 1.22% of requests use g-wan connection handler (with http_error notification) make g-wan ignore http errors , close connection without sending http error message (just return 0; in handler) - that's not users want.

there exceptions occur on csp too

an exception means 'graceful crash report' issued servlet bug. have 1 crash on 5,650 dynamic requests, during servlet development. @ error.log , trace files check happened.

note "cache misses" statistics static contents (1.15% of http requests).

apparently, not clients responding in timely fashion: have timeouts , pending requests.


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