[FUG-BR] squid HITS

Quarta Setembro 5 10:15:44 BRT 2007

puts.. to achando estranho isso.. hoje, ultilizei o cachemgr.cgi para dar 
uma olhada
no final  deste relatorio tem a seguinte informacao

TOTALS
ICP : 0 Queries, 0 Hits (  0%)
HTTP: 93443 Requests, 37037 Hits ( 40%)

ai eu pergunto:
    os HITS  sao ou nao os acerto? as paginas que estao em cache, ai em cima 
esta dizendo  40% de HITS..

estou interpretando errado ?????

proxy# squidclient mgr:info
HTTP/1.0 200 OK
Server: squid/2.6.STABLE14
Date: Wed, 05 Sep 2007 13:05:16 GMT
Content-Type: text/plain
Expires: Wed, 05 Sep 2007 13:05:16 GMT
Last-Modified: Wed, 05 Sep 2007 13:05:16 GMT
X-Cache: MISS from proxy.-------.com.br
X-Cache-Lookup: MISS from proxy.-----------.com.br:3128

Squid Object Cache: Version 2.6.STABLE14
Start Time:     Wed, 05 Sep 2007 12:10:27 GMT
Current Time:   Wed, 05 Sep 2007 13:05:16 GMT
Connection information for squid:
        Number of clients accessing cache:      96
        Number of HTTP requests received:       83518
        Number of ICP messages received:        0
        Number of ICP messages sent:    0
        Number of queued ICP replies:   0
        Request failure ratio:   0.00
        Average HTTP requests per minute since start:   1523.7
        Average ICP messages per minute since start:    0.0
        Select loop called: 883267 times, 3.723 ms avg
Cache information for squid:
        Request Hit Ratios:     5min: 50.9%, 60min: 37.8%
        Byte Hit Ratios:        5min: 16.6%, 60min: 22.2%
        Request Memory Hit Ratios:      5min: 1.7%, 60min: 1.0%
        Request Disk Hit Ratios:        5min: 46.1%, 60min: 35.7%
        Storage Swap size:      11030724 KB
        Storage Mem size:       35460 KB
        Mean Object Size:       16.06 KB
        Requests given to unlinkd:      1326
Median Service Times (seconds)  5 min    60 min:
        HTTP Requests (All):   0.09219  0.32154
        Cache Misses:          0.33943  1.46131
        Cache Hits:            0.00919  0.01309
        Near Hits:             0.19742  0.19742
        Not-Modified Replies:  0.00286  0.00286
        DNS Lookups:           0.00278  0.00278
        ICP Queries:           0.00000  0.00000
Resource usage for squid:
        UP Time:        3288.661 seconds
        CPU Time:       244.453 seconds
        CPU Usage:      7.43%
        CPU Usage, 5 minute avg:        4.34%
        CPU Usage, 60 minute avg:       7.48%
        Process Data Segment Size via sbrk(): 395100 KB
        Maximum Resident Size: 397828 KB
        Page faults with physical i/o: 11
Memory accounted for:
        Total accounted:        93091 KB
        memPoolAlloc calls: 16915356
        memPoolFree calls: 15383218
File descriptor usage for squid:
        Maximum number of file descriptors:   32768
        Largest file desc currently in use:   4928
        Number of file desc currently in use:  264
        Files queued for open:                   0
        Available number of file descriptors: 32504
        Reserved number of file descriptors:   100
        Store Disk files open:                  13
        IO loop method:                     kqueue
Internal Data Structures:
        687121 StoreEntries
          7284 StoreEntries with MemObjects
          7271 Hot Object Cache Items
        686907 on-disk objects

----- Original Message ----- 
From: "Nilton Jose Rizzo" <rizzo at i805.com.br>
To: "Lista Brasileira d e Discussão sobre FreeBSD (FUG-BR)" 
<freebsd at fug.com.br>
Sent: Tuesday, September 04, 2007 8:29 PM
Subject: Re: [FUG-BR] squid HITS

On Tue, 4 Sep 2007 16:29:15 -0300, marcelo wrote
> OLa preciso que  alguem me ajude a compreender o que é estas
> informacoes abaixo na verdade a informacao que eu quero mesmo, é
> quanto a eficiencia do meu squid, a porcentagem, de paginas que esta
> saindo do cache...
>
> Cache information for squid:
>         Request Hit Ratios:     5min: 49.9%, 60min: 33.6%
>         Byte Hit Ratios:        5min: 21.8%, 60min: 19.3%
>         Request Memory Hit Ratios:      5min: 4.4%, 60min: 3.2%
>         Request Disk Hit Ratios:        5min: 47.9%, 60min: 41.9%
>
> Median Service Times (seconds)  5 min    60 min:
>         HTTP Requests (All):   0.14252  0.46965
>         Cache Misses:          0.46965  3.11263
>         Cache Hits:            0.01235  0.01309
>         Near Hits:             0.17711  0.25890

    Olha pelo que esta escrito ai, o seu cache não tem cache .... :)
    Nos ultimos 5min teve mais erro no cache (misses 0,46965)) to que
    acertos (Hits).  Posso estar falando besteira, mas se isso é em
    percentual (46,96%) ele ta muito ruim pois os acertos são 1,23 %

   Verifique a quantidade de memopria que ele utiliza, quanto mais
   cache em memoria melhor, tempo de expiracao do cache na memoria e
   em disco

>
> Abracoss
>
> -------------------------
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-- 
Nilton José Rizzo
805 Informatica
Disseminado tecnologias
021 2413 9786

-------------------------
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