Messages in this thread | | | Date | Fri, 26 Sep 2008 17:57:47 +0800 | From | Chen Zumeng <> | Subject | Re: [PATCH 0/2] Traffic control cgroups subsystem |
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김재열 wrote: >> Incorporated fixes suggested by Li Zefan. >> >> Please consider for net-next-2.6. >> >> This patch provides a simple resource controller (cgroup_tc) based on >> the cgroups infrastructure to manage network traffic. The cgroup_tc >> resource controller can be used to schedule and shape traffic belonging >> to the task(s) in a particular cgroup. >> >> The implementation consists of two parts: >> >> 1) A resource controller (cgroup_tc) that is used to associate packets from >> a particular task belonging to a cgroup with a traffic control class id ( >> tc_classid). This tc_classid is propagated to all sockets created by tasks >> in the cgroup and will be used for classifying packets at the link layer. >> >> 2) A new traffic control classifier (cls_cgroup) that can classify packets >> based on the tc_classid field in the socket to specific destination classes. >> >> An example of the use of this resource controller would be to limit the >> traffic from all tasks from a file_server cgroup to 100Mbps. We could >> achieve this by doing: >> >> # make a cgroup of file transfer processes and assign it a arbitrary >> unique # classid of 0x1234 - this will be used later to direct packets. >> mkdir -p /dev/cgroup >> mount -t cgroup tc -otc /dev/cgroup >> mkdir /dev/cgroup/file_transfer >> echo 0x1234 > /dev/cgroup/file_transfer/tc.classid >> echo $PID_OF_FILE_XFER_PROCESS > /dev/cgroup/file_transfer/tasks >> >> # Now create a HTB class that rate limits traffic to 100mbits and >> attach # a filter to direct all traffic from cgroup file_transfer to this new class. >> tc qdisc add dev eth0 root handle 1: htb tc class add dev eth0 parent >> 1: classid 1:10 htb rate 100mbit ceil 100mbit tc filter add dev eth0 >> parent 1: handle 800 protocol ip prio 1 cgroup value 0x1234 classid >> 1:10 >> >> Signed-off-by: Ranjit Manomohan <ranjitm <at> google.com> >> > > I installed your patch to kernel-2.6.27-rc7 with some hunkles but without failes. > After compiling the kernel, I run the command which you wrote above. Most of all commands successfully are run except the last command " tc filter add dev eth0 parent 1: handle 800 protocol ip prio 1 cgroup value 0x1234 classid 1:10" > > After that, I received this messages > "Unknown filter "cgroup", hence option "value" is unparsable" > > So I operated this command with "strace", then below messages returned. > ... > socket(PF_NETLINK, SOCK_RAW, 0) = 3 > setsockopt(3, SOL_SOCKET, SO_SNDBUF, [32768], 4) = 0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [32768], 4) = 0 bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0 getsockname(3, {sa_family=AF_NETLINK, pid=5452, groups=00000000}, [12]) = 0 > time(NULL) = 1222389948 > open("/usr/lib/tc/f_cgroup.so", O_RDONLY) = -1 ENOENT (No such file or directory) write(2, "Unknown filter \"cgroup\", hence o"..., 60Unknown filter "cgroup", hence option "value" is unparsable I think there may be a file named f_cgroup.c in iproute-2.6.xxxx/tc/, right? and it looks like tc_group should be supported by tc also.
Regards, Zumeng > ) = 60 > close(3) = 0 > exit_group(1) = ? > > This messages told me tc couldn’t find "f_cgroup.so" library in my system. > With this message, I thought that we need a modified "tc" command file to recognize the new filter, cgroup. > > And I saw the line in your patch below > ">Please consider for net-next-2.6." > What's the meaning of the line? > I wonder if I have to adopt another patch for net-netxt-2.6 before adopting this patch? > > You didn't mentioned base kernel for this patch. > I am willing to know the base kernel version and why you didn't mention. > > I've worked couple of days for resolving this problem. But I couldn't find the proper answer yet. > > I'd really thank you if you help me. > > > To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo <at> vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
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