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Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Валентин Бартенев
February 20, 2014 08:38AM
On Thursday 20 February 2014 09:51:28 Vladimir Skubriev wrote:
> неа на диск обычного компа рабочего на линуксе (

Так изучите как дисковое I/O в линуксах работает. При первом
запуске большая часть файла у вас осела в памяти, а затем
он пошел сбрасывать странички на диск и тот просел.

>
> могу конечно для чистоты эксперимента сделать в /dev/null
>
> проверю с /dev/null
>
> wget http://st.example.lab/1024mb_file -O /dev/null
> ...
> 2014-02-20 09:47:42 (70.3 MB/s) - `/dev/null' saved [1073741824/1073741824

Тут вы прочитали файл с диска.

>
> wget http://st.example.lab/1024mb_file -O /dev/null
>
> next attepmts:
>
> 100%[===========================================================>]
> 1,073,741,824 1.37G/s in 0.7s
>

А тут уже из пейджкэша.

--
Валентин Бартенев
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Subject Author Posted

wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Vladimir Skubriev February 19, 2014 10:08AM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Михаил Монашёв February 19, 2014 10:46AM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Vladimir Skubriev February 19, 2014 01:08PM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Валентин Бартенев February 19, 2014 01:08PM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Vladimir Skubriev February 20, 2014 12:52AM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Валентин Бартенев February 20, 2014 08:38AM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Vladimir Skubriev February 20, 2014 11:52PM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Dmitry February 19, 2014 01:52PM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Vladimir Skubriev February 20, 2014 12:54AM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

ALex_hha February 20, 2014 01:22AM

Re: wget static file 1024mb localhost first attepmt 167Mb/sec, second attempt 22 Mb/sec, third attempt 47 Mb/sec - WHT ?

Vladimir Skubriev February 20, 2014 01:30AM



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