thank you very much. I really get it
2011/12/14 Zhu Yanhai
> 在 2011年12月14日 下午5:30，陈竞 写道：
> > i got the problem, my script is wrong, it should drop the cache, or it
> will
> > read data from cache,
> > the script is :
> > sync
> > echo 3 > /proc/sys/vm/drop_caches
> > dd if=/tmp/file1 of=/dev/
2011/12/14 Zhu Yanhai :
> 在 2011年12月14日 下午5:30，陈竞 写道：
>> i got the problem, my script is wrong, it should drop the cache, or it will
>> read data from cache,
>> the script is :
>> sync
>> echo 3 > /proc/sys/vm/drop_caches
>> dd if=/tmp/file1 of=/dev/null
>>
>>
>> size of file1 is 400M, and i get
在 2011年12月14日 下午5:30，陈竞 写道：
> i got the problem, my script is wrong, it should drop the cache, or it will
> read data from cache,
> the script is :
> sync
> echo 3 > /proc/sys/vm/drop_caches
> dd if=/tmp/file1 of=/dev/null
>
>
> size of file1 is 400M, and i get new test result:
> A: blkio.weight=
i got the problem, my script is wrong, it should drop the cache, or it will
read data from cache,
the script is :
sync
echo 3 > /proc/sys/vm/drop_caches
dd if=/tmp/file1 of=/dev/null
size of file1 is 400M, and i get new test result:
A: blkio.weight=100cost 11.12s speed is 37.5MB/s
B: blkio
And neither slice_idle nor group_idle is zero? Did you change any
default parameters for CFQ?
-zyh
在 2011年12月14日 下午4:55，陈竞 写道：
> my io scheduler is CFQ So the result is weird
>
> 在 2011年12月14日 下午4:12，陈竞 写道：
>
>> Hi， i'm using lxc in my project, i want to control disk io speed, so i use
>> bl
my io scheduler is CFQ So the result is weird
在 2011年12月14日 下午4:12，陈竞 写道：
> Hi， i'm using lxc in my project, i want to control disk io speed, so i use
> blkio.weight. I test it, but the result is confusing.
> I create two container A and B:
> A: blkio.weight = 100B : blkio.weight=
在 2011年12月14日 下午4:12，陈竞 写道：
> Hi， i'm using lxc in my project, i want to control disk io speed, so i use
> blkio.weight. I test it, but the result is confusing.
> I create two container A and B:
> A: blkio.weight = 100 B : blkio.weight=1000
>
> the running process in A and B are the sam
Hi， i'm using lxc in my project, i want to control disk io speed, so i use
blkio.weight. I test it, but the result is confusing.
I create two container A and B:
A: blkio.weight = 100B : blkio.weight=1000
the running process in A and B are the same, which is bash script :
dd if=/tmp/xxx
