On 04/30/2015 04:11 PM, Zefan Li wrote: > On 2015/4/30 15:11, Ma Shimiao wrote: >> Hello, >> >> I'm new to cgroups. >> I'm not sure whether this is the right place to ask questions about cgroups. >> If not, I will be very sorry for disturbing. >> >> Recently, I'm researching the usage of hugetlb. >> I have got a problem, but don't know why and how to solve it. >> >> # cat /proc/meminfo |grep -i huge >> AnonHugePages: 1894400 kB >> HugePages_Total: 192 >> HugePages_Free: 188 >> HugePages_Rsvd: 0 >> HugePages_Surp: 0 >> Hugepagesize: 2048 kB >> # cat /sys/fs/cgroup/hugetlb/hugetlb.2MB.limit_in_bytes >> 9223372036854771712 >> # cat /sys/fs/cgroup/hugetlb/hugetlb.2MB.max_usage_in_bytes >> 8388608 >> # cat /sys/fs/cgroup/hugetlb/hugetlb.2MB.usage_in_bytes >> 8388608 >> # echo 10240000000000 > /sys/fs/cgroup/hugetlb/hugetlb.2MB.limit_in_bytes >> -bash: echo: write error: Invalid argument >> >> It seems I cant write values to hugetlb.2MB.limit_in_bytes >> Could anyone give me some advice? >> Thanks very much. >> > > Looks like you were trying to write to the file in root cgroup, which > is forbidden. Ah... Tested. Really it is. Thanks. > > . > -- Ma Shimiao Development Dept.I Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST) -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
