Re: [squid-users] linux vs freebsd

From: Nitin Sharma <nitin@dont-contact.us>
Date: Sat, 17 Sep 2005 11:40:19 +0545

Thanks for all the responses.

I think the load on my freebsd is less than my linux box. also the cpu
information for both of my boxes are attached .. i dont think there is
much difference.

---- " Have you checked your duplex settings " ----- how do i do that ????

The two boxes are not the same ..

linux rh9 ===> : GenuineIntel cpu family : 15 model : 2
model name : Intel(R) Xeon(TM) CPU 2.80GHz stepping : 9 cpu
MHz : 2790.839
                        Mem: 1055567872
                        Swap: 2368839680
                        MemTotal: 1030828 kB
                        MemFree: 8680 kB

freebsd ==> CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2793.20-MHz
686-class CPU) cpu0: <ACPI CPU> on acpi0
                 real memory = 1056108544 (1007 MB)
                 avail memory = 1023905792 (976 MB)
                 agp0: detected 16252k stolen memory
                 hw.physmem: 1047162880
                 hw.usermem: 944418816
                 hw.cbb.start_memory: 2281701376

RED HAT LINUX 9
Connection information for squid:
    Number of clients accessing cache: 344
    Number of HTTP requests received: 19122865
    Number of ICP messages received: 5652134
    Number of ICP messages sent: 5652761
    Number of queued ICP replies: 0
    Request failure ratio: 0.00
    Average HTTP requests per minute since start: 699.8
    Average ICP messages per minute since start: 413.7
    Select loop called: 221061278 times, 7.416 ms avg
Cache information for squid:
    Request Hit Ratios: 5min: 55.3%, 60min: 50.7%
    Byte Hit Ratios: 5min: 26.1%, 60min: 22.3%
    Request Memory Hit Ratios: 5min: 17.8%, 60min: 15.3%
    Request Disk Hit Ratios: 5min: 27.8%, 60min: 33.3%
    Storage Swap size: 42565292 KB
    Storage Mem size: 130892 KB
    Mean Object Size: 14.39 KB
    Requests given to unlinkd: 0
Median Service Times (seconds) 5 min 60 min:
    HTTP Requests (All): 0.06286 0.46965
    Cache Misses: 1.31166 1.24267
    Cache Hits: 0.01387 0.01745
    Near Hits: 1.38447 1.38447
    Not-Modified Replies: 0.01309 0.01309
    DNS Lookups: 0.00278 0.00278
    ICP Queries: 0.00000 0.00196
Resource usage for squid:
    UP Time: 1639470.149 seconds
    CPU Time: 130797.700 seconds
    CPU Usage: 7.98%
    CPU Usage, 5 minute avg: 9.54%
    CPU Usage, 60 minute avg: 7.98%
    Process Data Segment Size via sbrk(): 484417 KB
    Maximum Resident Size: 0 KB
    Page faults with physical i/o: 365556
Memory usage for squid via mallinfo():
    Total space in arena: 484417 KB
    Ordinary blocks: 474906 KB 529161 blks
    Small blocks: 0 KB 0 blks
    Holding blocks: 16484 KB 8 blks
    Free Small blocks: 0 KB
    Free Ordinary blocks: 9510 KB
    Total in use: 491390 KB 98%
    Total free: 9510 KB 2%
    Total size: 500901 KB
Memory accounted for:
    Total accounted: 339076 KB
    memPoolAlloc calls: 2179037905
    memPoolFree calls: 2172629906
File descriptor usage for squid:
    Maximum number of file descriptors: 8192
    Largest file desc currently in use: 664
    Number of file desc currently in use: 445
    Files queued for open: 0
    Available number of file descriptors: 7747
    Reserved number of file descriptors: 100
    Store Disk files open: 0
Internal Data Structures:
    2979223 StoreEntries
     26663 StoreEntries with MemObjects
     26595 Hot Object Cache Items
    2957887 on-disk objects

FREEBSD 5.3
Connection information for squid:
    Number of clients accessing cache: 102
    Number of HTTP requests received: 7326
    Number of ICP messages received: 4411
    Number of ICP messages sent: 4411
    Number of queued ICP replies: 0
    Request failure ratio: 0.00
    Average HTTP requests per minute since start: 633.1
    Average ICP messages per minute since start: 762.4
    Select loop called: 116002 times, 5.985 ms avg
Cache information for squid:
    Request Hit Ratios: 5min: 24.9%, 60min: 27.1%
    Byte Hit Ratios: 5min: 11.5%, 60min: 11.6%
    Request Memory Hit Ratios: 5min: 4.0%, 60min: 3.0%
    Request Disk Hit Ratios: 5min: 32.1%, 60min: 34.0%
    Storage Swap size: 1975008 KB
    Storage Mem size: 11088 KB
    Mean Object Size: 12.00 KB
    Requests given to unlinkd: 0
Median Service Times (seconds) 5 min 60 min:
    HTTP Requests (All): 1.17732 1.17732
    Cache Misses: 1.31166 1.31166
    Cache Hits: 0.01098 0.01745
    Near Hits: 1.17732 1.17732
    Not-Modified Replies: 0.00678 0.00919
    DNS Lookups: 0.00278 0.00278
    ICP Queries: 0.00196 0.00196
Resource usage for squid:
    UP Time: 694.254 seconds
    CPU Time: 39.081 seconds
    CPU Usage: 5.63%
    CPU Usage, 5 minute avg: 5.52%
    CPU Usage, 60 minute avg: 5.58%
    Process Data Segment Size via sbrk(): 47504 KB
    Maximum Resident Size: 50144 KB
    Page faults with physical i/o: 3
Memory accounted for:
    Total accounted: 23902 KB
    memPoolAlloc calls: 1575824
    memPoolFree calls: 1209302
File descriptor usage for squid:
    Maximum number of file descriptors: 6976
    Largest file desc currently in use: 350
    Number of file desc currently in use: 318
    Files queued for open: 0
    Available number of file descriptors: 6658
    Reserved number of file descriptors: 100
    Store Disk files open: 0
Internal Data Structures:
    164696 StoreEntries
      1481 StoreEntries with MemObjects
      1449 Hot Object Cache Items
    164619 on-disk objects

i have reiserfs on my linux box .. whereas in freebsd its my usual
freebsd partition.

Please guide me into some possible discrepancy factors.. such that it
would help me tune my box for better performances..

Yet another thing, i have GRE tunnel which intercepts the WCCP packet
from my router and i have used ipfw for the purpose. ( in freebsd box)

Thanks

Nitin

Matus UHLAR - fantomas wrote:

>On 16.09 20:18, Nitin Sharma wrote:
>
>
>>i have two boxes .. with SQUID Version 2.5.STABLE10.
>>
>>the linux box has (rh 9)
>>Median Service Times (seconds) 5 min 60 min:
>> HTTP Requests (All): 0.06286 0.46965
>>
>>whereas the freebsd box has (freebsd 5.3)
>>Median Service Times (seconds) 5 min 60 min:
>> HTTP Requests (All): 1.17732 1.17732
>>
>>both of my system have 1 GB RAM..
>>squid is transparent and with diskd support.
>>
>>
>
>linux can, freebsd5 probably can too handle aufs. it should be faster than
>diskd.
>
>however we don't know how many requests do they handle per minute...
>
>
>
>>what might be the factors for such discrepancies ??
>>
>>
>
>many possible factors. not enough informations :)
>
>
>
>>i compiled squid in a freebsd box for better performance with some kernel
>>tunings.
>>
>>
>
>
>
Received on Fri Sep 16 2005 - 23:55:28 MDT

This archive was generated by hypermail pre-2.1.9 : Sat Oct 01 2005 - 12:00:03 MDT