Re: A mainline question about cgroup writeback

2016-04-21 Thread zhong jiang
On 2016/4/21 5:22, Tejun Heo wrote: > On Tue, Apr 19, 2016 at 03:19:59PM +0800, zhong jiang wrote: >> cgroup writeback support the filesystem both ext4 and ext2. >> but, it appears to be not work when I test the function in the ext4. >> The example is as follows: >> echo "8:0 1048576" > blkio.thro

Re: A mainline question about cgroup writeback

2016-04-20 Thread Tejun Heo
On Tue, Apr 19, 2016 at 03:19:59PM +0800, zhong jiang wrote: > cgroup writeback support the filesystem both ext4 and ext2. > but, it appears to be not work when I test the function in the ext4. > The example is as follows: > echo "8:0 1048576" > blkio.throttle.write_bps_device > echo $$ > cgroup.p

Re: A mainline question about cgroup writeback

2016-04-19 Thread Alex Shi
It looks like a bug on cgroup writeback. Is this a regression or consistent issue? If it's a regression, you may could do bisect to find out the buggy commit. On Tue, Apr 19, 2016 at 3:19 PM, zhong jiang wrote: > cgroup writeback support the filesystem both ext4 and ext2. > but, it appears to be

A mainline question about cgroup writeback

2016-04-19 Thread zhong jiang
cgroup writeback support the filesystem both ext4 and ext2. but, it appears to be not work when I test the function in the ext4. The example is as follows: echo "8:0 1048576" > blkio.throttle.write_bps_device echo $$ > cgroup.procs dd if=/dev/zero of=/test.c bs=1M count=10240 10240+0 records in 10

A mainline question about cgroup writeback

2016-04-18 Thread zhong jiang
cgroup writeback support the filesystem both ext4 and ext2. but, it appears to be not work when I test the function in the ext4. The example is as follows: echo "8:0 1048576" > blkio.throttle.write_bps_device echo $$ > cgroup.procs dd if=/dev/zero of=/test.c bs=1M count=10240 10240+0 records in 10