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DescriptionMarcelo Ricardo Leitner
2019-09-19 15:03:10 UTC
Description of problem:
Test consist of adding 1M tc filter rules, such as:
# tc qdisc add dev p6p1 ingress
# tc -b add.0
on which:
[root@wsfd-netdev19 ~]# head add.0
filter add dev p6p1 protocol ip ingress prio 1 handle 1 flower skip_hw src_mac e4:11:0:0:0:0 dst_mac e4:12:0:0:0:0 action gact drop
filter add dev p6p1 protocol ip ingress prio 1 handle 2 flower skip_hw src_mac e4:11:0:0:0:1 dst_mac e4:12:0:0:0:1 action gact drop
even with:
[root@wsfd-netdev19 ~]# cat /etc/sysconfig/network-scripts/ifcfg-p6p1
NM_CONTROLLED=no
I see:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10684 root 20 0 9888 700 584 R 99.3 0.0 0:22.06 tc
1077 root 20 0 755728 292112 6692 S 53.6 0.3 1:41.64 NetworkManager
^^^^^^ excess usage
It grows during the test, and may grow more when ran multiple times, but it tends to stabilize. Seems that this could be a glib/malloc() caching.
This memory seems to be never returned.
I didn't try on RHEL8/Fedora yet.
Version-Release number of selected component (if applicable):
NetworkManager-1.18.0-6.el7.x86_64
this is a valid bug, but we should first investigate and fix it on RHEL8.
Also, it probably requires larger work, which we may not do for RHEL7 anymore.
Reassigning to RHEL8.
Comment 7RHEL Program Management
2021-03-31 07:30:51 UTC
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release. Therefore, it is being closed. If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.
Description of problem: Test consist of adding 1M tc filter rules, such as: # tc qdisc add dev p6p1 ingress # tc -b add.0 on which: [root@wsfd-netdev19 ~]# head add.0 filter add dev p6p1 protocol ip ingress prio 1 handle 1 flower skip_hw src_mac e4:11:0:0:0:0 dst_mac e4:12:0:0:0:0 action gact drop filter add dev p6p1 protocol ip ingress prio 1 handle 2 flower skip_hw src_mac e4:11:0:0:0:1 dst_mac e4:12:0:0:0:1 action gact drop even with: [root@wsfd-netdev19 ~]# cat /etc/sysconfig/network-scripts/ifcfg-p6p1 NM_CONTROLLED=no I see: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 10684 root 20 0 9888 700 584 R 99.3 0.0 0:22.06 tc 1077 root 20 0 755728 292112 6692 S 53.6 0.3 1:41.64 NetworkManager ^^^^^^ excess usage It grows during the test, and may grow more when ran multiple times, but it tends to stabilize. Seems that this could be a glib/malloc() caching. This memory seems to be never returned. I didn't try on RHEL8/Fedora yet. Version-Release number of selected component (if applicable): NetworkManager-1.18.0-6.el7.x86_64