Date: Mon, 11 Feb 2008 21:09:37 +0300 From: Alexey Tarasov <me@lexasoft.ru> To: current@freebsd.org Subject: Re: Disappointing speed with ZFS Message-ID: <DD62C8A1-D508-497A-AFF8-008E54538280@lexasoft.ru> In-Reply-To: <foq23b$9j1$1@ger.gmane.org> References: <9DA6FFCD-11DB-4580-9314-52B0885351D8@lexasoft.ru> <fopmlp$qeh$1@ger.gmane.org> <0EF3CEE6-6F38-4713-A245-4354D34AFE75@lexasoft.ru> <9bbcef730802110921i6af516b9t855a4065884cc64b@mail.gmail.com> <79D93B0C-589E-41C6-A952-6D573297D9F9@lexasoft.ru> <foq23b$9j1$1@ger.gmane.org>
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ls -lash CentOS-5.1-x86_64-bin-DVD.iso
4341952 -rw-r--r-- 1 lexa wheel 4,1G 7 =D1=84=D0=B5=D0=B2 16:24 =
CentOS-5.1-=20
x86_64-bin-DVD.iso
`--# dd if=3DCentOS-5.1-x86_64-bin-DVD.iso of=3Dtest2
tty ad4 ad5 =20
ad6 cpu
tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy =20=
in id
0 351 7.33 1 0.01 57.37 44 2.44 43.02 44 1.87 1 0 =20
1 0 98
0 594 0.00 0 0.00 59.00 15 0.89 62.63 301 18.38 0 0 =20
9 0 91
0 287 0.00 0 0.00 59.20 25 1.44 64.00 325 20.29 1 0 =20
50 0 49
0 328 0.00 0 0.00 55.11 18 0.97 64.00 291 18.17 1 0 =20
49 1 49
0 264 16.00 1 0.02 53.33 12 0.62 64.00 345 21.55 2 0 =20
36 0 62
0 285 19.50 32 0.61 54.73 22 1.17 64.00 320 19.98 1 0 =20
52 1 47
0 341 0.00 0 0.00 64.00 17 1.06 64.00 365 22.78 1 0 =20
47 1 51
0 345 0.00 0 0.00 52.50 16 0.81 64.00 328 20.49 1 0 =20
32 1 66
0 299 0.00 0 0.00 57.38 26 1.46 64.00 302 18.86 2 0 =20
49 0 49
0 308 0.00 0 0.00 58.59 17 0.94 60.70 383 22.73 0 0 =20
16 0 84
0 307 0.00 0 0.00 46.06 33 1.48 54.20 369 19.51 1 0 =20
51 0 48
0 305 0.00 0 0.00 51.80 20 1.01 63.38 303 18.74 1 0 =20
47 0 52
0 269 0.00 0 0.00 54.86 21 1.11 63.78 285 17.73 1 0 =20
37 0 62
0 307 0.00 0 0.00 55.56 18 0.98 64.00 285 17.79 0 0 =20
50 2 48
0 267 4.00 1 0.00 53.33 12 0.60 63.86 868 54.16 0 0 =20
4 0 96
0 300 6.71 28 0.18 56.70 23 1.26 63.75 505 31.43 0 0 =20
47 2 52
0 307 0.00 0 0.00 60.55 22 1.30 64.00 694 43.39 1 0 =20
67 2 30
0 309 0.00 0 0.00 52.42 19 0.97 64.00 967 60.44 0 0 =20
61 1 38
0 286 0.00 0 0.00 50.91 21 1.07 62.91 380 23.36 0 0 =20
20 1 79
0 301 0.00 0 0.00 58.74 18 1.05 64.00 606 37.87 0 0 =20
4 1 95
On 11.02.2008, at 20:53, Ivan Voras wrote:
> Alexey Tarasov wrote:
>
>> `--# dd if=3Dtest.tmp of=3Dtest2.tmp
>
>>
>> tty ad4 ad5 =20
>> ad6 cpu
>> tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni =20
>> sy in id
>> 1 238 0.00 0 0.00 60.22 18 1.04 64.00 982 61.37 1 0 =20
>> 31 2 67
>> 1 3349 0.00 0 0.00 64.00 7 0.43 58.53 757 43.26 1 0 =20
>> 46 0 53
>> 0 286 0.00 0 0.00 55.81 21 1.13 64.00 487 30.43 1 0 =20
>> 31 1 67
>> 0 269 0.00 0 0.00 64.00 8 0.50 64.00 21 1.31 2 0 =20
>> 49 0 49
>
> Ok, now do the same with the file that rtorrent is hashing in the "if"
> argument.
>
> You should have used "bs=3D1m" for both tests, but it's too late now - =
=20
> do
> the other test also without "bs".
>
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--
Alexey Tarasov
(\__/)
(=3D'.'=3D)
E[: | | | | :]=D0=97
(")_(")
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