Re: Disappointing speed with ZFS

       tty             ad4              ad5               
ad6             cpu
  tin tout  KB/t tps  MB/s   KB/t tps  MB/s   KB/t tps  MB/s  us ni sy  
in id
    0  347  7.36   1  0.01  57.35  43  2.42  42.84  44  1.84   1  0   
1  0 98
    0  606  0.00   0  0.00  58.62  31  1.76  63.02 246 15.14   0  0   
3  0 97
    2 5334  0.00   0  0.00  57.14   7  0.37  64.00 355 22.20   0  0   
2  0 97
    2 3194  0.00   0  0.00   0.00   0  0.00  63.35 295 18.26   0  0   
2  1 97
    0  148  0.00   0  0.00   0.00   0  0.00  63.90 336 20.97   0  0   
0  1 99
    0  453  0.00   0  0.00  55.87  87  4.72  64.00 290 18.14   1  0   
3  0 96
    0  339  0.00   0  0.00  60.22  35  2.04  61.31 342 20.49   0  0   
3  0 96
    0  311  0.00   0  0.00  60.00  24  1.41  61.48 347 20.84   0  0   
3  0 96
    0  317  0.00   0  0.00  50.37  26  1.28  64.00 327 20.42   0  0   
3  0 97
    0  488  0.00   0  0.00  54.05  37  1.98  64.00 284 17.78   1  0   
2  0 97
    0  309  0.00   0  0.00  54.21  28  1.47  63.22 312 19.27   0  0   
3  0 97
    0  303 16.00  14  0.23  37.51  51  1.87  64.00 334 20.85   1  0   
1  1 97
    0  297  0.00   0  0.00  57.89  35  1.96  63.78 345 21.49   1  0   
3  0 97
    0  287  0.00   0  0.00  51.86  28  1.41  64.00 325 20.34   0  0   
2  0 98
    0  319  0.00   0  0.00  60.52  30  1.76  63.24 299 18.46   0  0   
4  1 94
    0  277  0.00   0  0.00  63.83  22  1.38  64.00 274 17.11   1  0   
2  1 97
    0  298  0.00   0  0.00  55.29  16  0.88  63.21 286 17.63   0  0   
2  0 97
    0  338 12.12  31  0.36  57.65  33  1.84  62.08 299 18.13   1  0   
4  0 95
    0  306  2.00   1  0.00  58.55  21  1.21  64.00 332 20.73   2  0   
2  1 95
    0  269  0.00   0  0.00  59.68  24  1.40  64.00 304 18.98   1  0   
2  0 96



On 11.02.2008, at 21:12, Ivan Voras wrote:

> Alexey Tarasov wrote:
>> ls -lash CentOS-5.1-x86_64-bin-DVD.iso
>>
>> 4341952 -rw-r--r--  1 lexa  wheel   4,1G  7 фев 16:24
>> CentOS-5.1-x86_64-bin-DVD.iso
>>
>> `--# dd if=CentOS-5.1-x86_64-bin-DVD.iso of=test2
>
> Ok, now try this one:
> # dd if=CentOS-5.1-x86_64-bin-DVD.iso of=/dev/null bs=1m
>
>>
>>      tty             ad4              ad5               
>> ad6             cpu
>> tin tout  KB/t tps  MB/s   KB/t tps  MB/s   KB/t tps  MB/s  us ni  
>> sy in id
>>   0  351  7.33   1  0.01  57.37  44  2.44  43.02  44  1.87   1  0   
>> 1  0 98
>>   0  594  0.00   0  0.00  59.00  15  0.89  62.63 301 18.38   0  0   
>> 9  0 91
>>   0  287  0.00   0  0.00  59.20  25  1.44  64.00 325 20.29   1  0  
>> 50  0 49
>
>> On 11.02.2008, at 20:53, Ivan Voras wrote:
>>
>>> Alexey Tarasov wrote:
>>>
>>>> `--# dd if=test.tmp of=test2.tmp
>>>
>>>>
>>>>     tty             ad4              ad5
>>>> ad6             cpu
>>>> tin tout  KB/t tps  MB/s   KB/t tps  MB/s   KB/t tps  MB/s  us ni  
>>>> sy
>>>> in id
>>>>  1  238  0.00   0  0.00  60.22  18  1.04  64.00 982 61.37   1  0 31
>>>> 2 67
>>>>  1 3349  0.00   0  0.00  64.00   7  0.43  58.53 757 43.26   1  0 46
>>>> 0 53
>>>>  0  286  0.00   0  0.00  55.81  21  1.13  64.00 487 30.43   1  0 31
>>>> 1 67
>>>>  0  269  0.00   0  0.00  64.00   8  0.50  64.00  21  1.31   2  0 49
>>>> 0 49
>>>
>>> Ok, now do the same with the file that rtorrent is hashing in the  
>>> "if"
>>> argument.
>
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--
Alexey Tarasov

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