I heard from someone from squid-cache.org that there was gonna be a 4.
cacheoff in november, which was suppose to test squid as a reverse proxy..
And that's what I'm running.. - squid-head - with the rproxy.patch..
I just "tested" my squid, in a live setup, where it achived a little over
900 req/sec - for a short while - before it died.. (it didn't answer
requests - had to stop/start).
That was untuned.. I would like to know, If I can configure it to perform
better.. and to perhaps - instead of not serving costumers - it could just
not accept any more connections - when it reaches response times (or a max
conn) of a certain amount..
I thought of trying to tune max-window size and so on.. I would like to
know if any of you have any experience with tuning a squid box in this way
- to see how much I can squeeze out of it :-)
I have to compare squid with a CacheFlow box.. and the Cacheflow people
tell us they can serve many more req/sec..
but I ofcourse hope, that I can prove that the CacheFlow box, can't serve
more than twice what squid can.. cause then it pays to run squid instead..
Below you see the last stats I got..
why is squid not keeping the objects in the memory? :-(
|---------+-----------------------|
| Start | Mon, 12 Nov 2001 |
| Time: | 15:55:29 GMT |
|---------+-----------------------|
| Current | Mon, 12 Nov 2001 |
| Time: | 15:59:32 GMT |
|---------+-----------------------|
Connection information for squid:
Number of clients accessing cache: 745
Number of HTTP requests received: 224313
Number of ICP messages received: 0
Number of ICP messages sent: 0
Number of queued ICP replies: 0
Request failure ratio: 0.00%
HTTP requests per minute: 55174.3
ICP messages per minute: 0.0
Select loop called: 33758 times, 7.226 ms avg
Cache information for squid:
Request Hit Ratios: 5min: 1.6%, 60min: 1.6%
Byte Hit Ratios: 5min: 24.1%, 60min: 24.1%
Request Memory Hit Ratios: 5min: 7.4%, 60min: 7.4%
Request Disk Hit Ratios: 5min: 38.2%, 60min: 38.2%
Storage Swap size: 934476 KB
Storage Mem size: 3040 KB
Mean Object Size: 21.88 KB
Requests given to unlinkd: 0
Median Service Times (seconds) 5 min 60 min:
HTTP Requests (All): 0.04776 0.04776
Cache Misses: 0.05046 0.05046
Cache Hits: 0.02069 0.02069
Near Hits: 0.07014 0.07014
Not-Modified Replies: 0.02190 0.02190
DNS Lookups: 0.31806 0.31806
ICP Queries: 0.00000 0.00000
Resource usage for squid:
UP Time: 243.932 seconds
CPU Time: 244.930 seconds
CPU Usage: 100.41%
CPU Usage, 5 minute avg: 100.40%
CPU Usage, 60 minute avg: 100.40%
Maximum Resident Size: 0 KB
Page faults with physical i/o: 358
Memory usage for squid via mallinfo():
Total space in arena: 13224 KB
Ordinary blocks: 13184 KB 1674 blks
Small blocks: 0 KB 0 blks
Holding blocks: 404 KB 2 blks
Free Small blocks: 0 KB
Free Ordinary blocks: 39 KB
Total in use: 13588 KB 103%
Total free: 39 KB 0%
Memory accounted for:
Total accounted: -1 KB
memPoolAlloc calls: 29572746
memPoolFree calls: 29478662
File descriptor usage for squid:
Maximum number of file descriptors: 1024
Largest file desc currently in use: 412
Number of file desc currently in use: 367
Files queued for open: 1
Available number of file descriptors: 656
Reserved number of file descriptors: 100
Store Disk files open: -70
Internal Data Structures:
42807 StoreEntries
261 StoreEntries with MemObjects
160 Hot Object Cache Items
42709 on-disk objects
[root]# vmstat 1 100
procs memory swap io system
cpu
r b w swpd free buff cache si so bi bo in cs us sy
id
1 0 1 4344 241360 73008 581044 0 0 0 0 18347 218 35
23 41
1 0 1 4344 241368 73008 581036 0 0 0 0 18384 225 31
29 40
1 0 1 4344 241340 73008 581052 0 0 0 812 18344 255 30
28 41
1 0 1 4344 241256 73008 581052 0 0 0 0 18152 347 30
27 43
0 0 1 4344 241180 73008 581084 0 0 16 0 18222 245 38
20 43
1 0 0 4344 241044 73008 581084 0 0 0 0 18212 232 38
20 42
1 0 1 4344 241040 73008 581088 0 0 0 0 18245 368 30
27 43
1 0 1 4344 241040 73008 581088 0 0 0 588 18232 282 34
25 41
1 0 0 4344 241028 73008 581088 0 0 0 0 18134 398 37
24 40
1 0 1 4344 241020 73008 581096 0 0 0 0 18322 327 33
25 42
1 0 1 4344 240972 73008 581108 0 0 0 0 18465 306 38
20 42
2 0 1 4344 240972 73008 581108 0 0 0 0 18028 400 32
26 41
1 0 1 4344 240972 73008 581108 0 0 0 780 18207 342 34
24 42
2 0 1 4344 240968 73008 581112 0 0 0 0 18000 428 37
21 42
1 0 1 4344 240960 73008 581120 0 0 0 0 18059 335 40
20 40
1 0 1 4344 240908 73008 581132 0 0 0 0 18016 388 33
27 40
1 0 1 4344 240888 73008 581136 0 0 0 0 18250 407 36
22 42
5 0 0 4344 240852 73008 581136 0 0 0 740 18119 397 39
21 40
1 0 1 4344 240844 73008 581136 0 0 0 0 18253 199 40
17 43
1 0 0 4344 240840 73008 581136 0 0 0 0 18227 251 33
25 42
1 0 1 4344 240848 73008 581136 0 0 0 0 18177 239 31
29 40
1 0 1 4344 240848 73008 581136 0 0 0 0 18388 181 30
29 41
1 0 1 4344 240848 73008 581136 0 0 0 224 18418 245 35
28 38
0 0 1 4344 240844 73008 581140 0 0 0 0 18467 199 35
22 42
1 0 1 4344 240772 73008 581172 0 0 16 0 18367 320 38
21 41
1 0 1 4344 240704 73008 581188 0 0 0 0 18411 283 35
21 43
1 0 1 4344 240704 73008 581188 0 0 0 0 18438 247 32
27 41
1 0 1 4344 240700 73008 581188 0 0 0 592 18438 363 38
20 41
1 0 1 4344 240700 73008 581188 0 0 0 0 18139 422 37
21 42
1 0 1 4344 240696 73008 581188 0 0 0 0 18265 325 35
23 41
-------------| This mail has been sent to you by: |------------
Klavs Klavsen, IT-coordinator and Systems Administrator at
Metropol Online - http://www.metropol.dk
Tlf. 33752700, Fax 33752720, Email ktk@metropol.dk
Private- Email klavs@klavsen.net - http://www.vsen.dk
--------------------[ I believe that... ]-----------------------
It is a myth that people resist change. People resist what other
people make them do, not what they themselves choose to do...
That's why companies that innovate successfully year after year
seek their peopl's ideas, let them initiate new projects and
encourage more experiments. -- Rosabeth Moss Kanter
Received on Mon Nov 12 2001 - 10:09:35 MST
This archive was generated by hypermail pre-2.1.9 : Tue Dec 09 2003 - 17:04:03 MST