Transparent cache & load & abort.callback

From: Jan Haluza <Jan.Haluza@dont-contact.us>
Date: Fri, 26 Nov 1999 08:46:42 +0100 (MET)

Hi,

let me post sample of the "General Runtime Information" and "Event Queue"
listing from my cache (PII, 200MHZ, 256 MB RAM, 10GB HDD).

This cache runs in transparent mode (WCCP, 2.2STABLE5). I was curious how
much squid can handle but I got stuck in troubles with the event queue
(wccp events are not handled in time and router suspects the cache beeing
death and stops redirection).

Questions:
- where I can find the information on the process which is just beeing
processed (what prevents event handling mechanism to process the
queue)(without starting debug)
- what can be done to reduce (speed up) the mem->abort.callback (so that
there was not so crowdy :-) (do not ask me to buy a new hardware (sure I
will do that):-)

Best Regards,

Jan

========================================================================
Cache Manager menu - Event Queue
------------------------------------------------------------------------

        Operation Next Execution
 mem->abort.callback -21.389253 seconds
 mem->abort.callback -21.389253 seconds
 mem->abort.callback -21.389253 seconds
 mem->abort.callback -20.387200 seconds
 mem->abort.callback -20.387200 seconds
 fwdConnectStart -20.387200 seconds
 mem->abort.callback -20.387200 seconds
 mem->abort.callback -20.387200 seconds
 mem->abort.callback -20.387200 seconds
 mem->abort.callback -20.387200 seconds
 mem->abort.callback -20.387200 seconds
 mem->abort.callback -20.387200 seconds
 mem->abort.callback -20.387200 seconds
 MaintainSwapSpace -19.754758 seconds
 mem->abort.callback -19.389735 seconds
 mem->abort.callback -19.389735 seconds
 fwdConnectStart -19.389735 seconds
 mem->abort.callback -19.389735 seconds
 mem->abort.callback -19.389735 seconds
 mem->abort.callback -19.389735 seconds
 mem->abort.callback -18.389616 seconds
 mem->abort.callback -18.389616 seconds
 mem->abort.callback -18.389616 seconds
 mem->abort.callback -18.389616 seconds
 mem->abort.callback -18.389616 seconds
 mem->abort.callback -18.389616 seconds
 mem->abort.callback -18.389616 seconds
 mem->abort.callback -18.389616 seconds
 fwdConnectStart -17.363334 seconds
 fwdConnectStart -17.363334 seconds
 mem->abort.callback -17.363334 seconds
 mem->abort.callback -17.363334 seconds
 mem->abort.callback -17.363334 seconds
 mem->abort.callback -17.363334 seconds
 mem->abort.callback -17.363334 seconds
 fwdConnectStart -17.363334 seconds
 mem->abort.callback -16.370045 seconds
 mem->abort.callback -16.370045 seconds
 mem->abort.callback -16.370045 seconds
 mem->abort.callback -16.370045 seconds
 mem->abort.callback -16.370045 seconds
 mem->abort.callback -15.356002 seconds
 mem->abort.callback -15.356002 seconds
 mem->abort.callback -15.356002 seconds
 mem->abort.callback -15.356002 seconds
 mem->abort.callback -15.356002 seconds
 fqdncache_purgelru -14.387663 seconds
 fwdConnectStart -14.359427 seconds
 fwdConnectStart -14.359427 seconds
 mem->abort.callback -14.359427 seconds
 mem->abort.callback -14.359427 seconds
 mem->abort.callback -13.159614 seconds
 mem->abort.callback -13.159614 seconds
 fwdConnectStart -13.159614 seconds
 fwdConnectStart -13.159614 seconds
 mem->abort.callback -13.159614 seconds
 mem->abort.callback -13.159614 seconds
 mem->abort.callback -13.159614 seconds
 fwdConnectStart -13.159614 seconds
 mem->abort.callback -13.159614 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 fwdConnectStart -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 mem->abort.callback -12.158485 seconds
 fwdConnectStart -11.160074 seconds
 mem->abort.callback -11.160074 seconds
 mem->abort.callback -11.160074 seconds
 mem->abort.callback -11.160074 seconds
 fwdConnectStart -10.156924 seconds
 fwdConnectStart -10.156924 seconds
 mem->abort.callback -10.156924 seconds
 mem->abort.callback -10.156924 seconds
 mem->abort.callback -10.156924 seconds
 mem->abort.callback -10.156924 seconds
 mem->abort.callback -10.156924 seconds
 mem->abort.callback -9.160093 seconds
 mem->abort.callback -8.150519 seconds
 mem->abort.callback -8.150519 seconds
 fwdConnectStart -8.150519 seconds
 mem->abort.callback -8.150519 seconds
 mem->abort.callback -8.150519 seconds
 mem->abort.callback -8.150519 seconds
 mem->abort.callback -7.046528 seconds
 mem->abort.callback -7.046528 seconds
 mem->abort.callback -7.046528 seconds
 mem->abort.callback -7.046528 seconds
 mem->abort.callback -6.041482 seconds
 mem->abort.callback -6.041482 seconds
 mem->abort.callback -6.041482 seconds
 fwdConnectStart -6.041482 seconds
 mem->abort.callback -6.041482 seconds
 mem->abort.callback -6.041482 seconds
 storeDirClean -5.387200 seconds
 fwdConnectStart -5.049986 seconds
 mem->abort.callback -5.049986 seconds
 mem->abort.callback -5.049986 seconds
 mem->abort.callback -5.049986 seconds
 fwdConnectStart -5.049986 seconds
 mem->abort.callback -5.049986 seconds
 fwdConnectStart -4.039811 seconds
 mem->abort.callback -3.027853 seconds
 fwdConnectStart -3.027853 seconds
 mem->abort.callback -3.027853 seconds
 fwdConnectStart -2.005001 seconds
 mem->abort.callback -2.005001 seconds
 fwdConnectStart -2.005001 seconds
 fwdConnectStart -2.005001 seconds
 mem->abort.callback -2.005001 seconds
 mem->abort.callback -2.005001 seconds
 fwdConnectStart -2.005001 seconds
 ipcache_purgelru -1.160074 seconds
 mem->abort.callback -0.990540 seconds
 fwdConnectStart -0.990540 seconds
 mem->abort.callback -0.990540 seconds
 mem->abort.callback -0.990540 seconds
 mem->abort.callback -0.990540 seconds
 mem->abort.callback -0.990540 seconds
 mem->abort.callback -0.990540 seconds
 fwdConnectStart 0.000000 seconds
 mem->abort.callback 0.000000 seconds
 fwdConnectStart 0.000000 seconds
 wccpHereIam 1.960189 seconds
 peerRefreshDNS 6.745461 seconds
 statAvgTick 12.540291 seconds
 storeDigestRebuildStart 1245.279906 seconds
 storeDigestRewriteStart 1258.349897 seconds

  ------------------------------------------------------------------------
Generated Thu, 25 Nov 1999 13:57:13 GMT, by
cachemgr3.cgi/2.3.DEVEL2@sysel.osanet.cz

Cache Manager menu - General Runtime Information
------------------------------------------------------------------------

Squid Object Cache: Version 2.2.STABLE5

 Start Time: Thu, 25 Nov 1999 13:17:19 GMT
 Current Time: Thu, 25 Nov 1999 13:58:41 GMT

Connection information for squid:
        Number of clients accessing cache: 651
        Number of HTTP requests received: 134767
        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: 3257.4
        ICP messages per minute: 0.0
        Select loop called: 92845 times, 26.736 ms avg
Cache information for squid:
        Request Hit Ratios: 5min: 42.1%, 60min: 42.2%
        Byte Hit Ratios: 5min: 20.3%, 60min: 22.2%
        Storage Swap size: 9869775 KB
        Storage Mem size: 50868 KB
        Storage LRU Expiration Age: 2.05 days
        Mean Object Size: 18.49 KB
        Requests given to unlinkd: 14759
Median Service Times (seconds) 5 min 60 min:
        HTTP Requests (All): 1.91442 0.94847
        Cache Misses: 2.79397 1.91442
        Cache Hits: 0.94847 0.94847
        Near Hits: 2.02066 1.91442
        Not-Modified Replies: 0.94847 0.00000
        DNS Lookups: 0.96589 0.00000
        ICP Queries: 0.00000 0.00000
Resource usage for squid:
        UP Time: 2482.334 seconds
        CPU Time: 1222.830 seconds
        CPU Usage: 49.26%
        CPU Usage, 5 minute avg: 44.40%
        CPU Usage, 60 minute avg: 49.10%
        Maximum Resident Size: 0 KB
        Page faults with physical i/o: 60180
Memory usage for squid via mallinfo():
        Total space in arena: 121324 KB
        Ordinary blocks: 119506 KB 2794 blks
        Small blocks: 0 KB 0 blks
        Holding blocks: 988 KB 3 blks
        Free Small blocks: 0 KB
        Free Ordinary blocks: 1818 KB
        Total in use: 120494 KB 99%
        Total free: 1818 KB 1%
Memory accounted for:
        Total accounted: 102107 KB
File descriptor usage for squid:
        Maximum number of file descriptors: 2048
        Largest file desc currently in use: 1397
        Number of file desc currently in use: 975
        Files queued for open: 0
        Available number of file descriptors: 1073
        Reserved number of file descriptors: 100
        Store Disk files open: 38
Internal Data Structures:
        534459 StoreEntries
         10359 StoreEntries with MemObjects
          9999 Hot Object Cache Items
        533797 Filemap bits set
        533769 on-disk objects

  ------------------------------------------------------------------------
Generated Thu, 25 Nov 1999 13:58:42 GMT, by
cachemgr3.cgi/2.3.DEVEL2@sysel.osanet.cz

===============================================================================
  TECHNICAL UNIVERSITY OSTRAVA tel.: +42 69 6991257
       COMPUTER CENTRE fax.: +42 69 6919352
       Tr. 17. listopadu e-mail: jan.haluza@vsb.cz
708 33 Ostrava-Poruba
       Czech Republic
===============================================================================
Received on Fri Nov 26 1999 - 01:03:21 MST

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