---> uname -a: Linux prd-ubuntu1804-docker-8c-8g-6131 4.15.0-192-generic #203-Ubuntu SMP Wed Aug 10 17:40:03 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 8 NUMA node(s): 1 Vendor ID: AuthenticAMD CPU family: 23 Model: 49 Model name: AMD EPYC-Rome Processor Stepping: 0 CPU MHz: 2800.000 BogoMIPS: 5600.00 Virtualization: AMD-V Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 512K L3 cache: 16384K NUMA node0 CPU(s): 0-7 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm rep_good nopl xtopology cpuid extd_apicid tsc_known_freq pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext perfctr_core ssbd ibrs ibpb stibp vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves clzero xsaveerptr arat npt lbrv nrip_save tsc_scale vmcb_clean flushbyasid pausefilter pfthreshold v_vmsave_vmload vgif umip rdpid arch_capabilities ---> nproc: 8 ---> df -h: Filesystem Size Used Avail Use% Mounted on udev 16G 0 16G 0% /dev tmpfs 3.2G 1.8M 3.2G 1% /run /dev/vda1 155G 15G 141G 10% / tmpfs 16G 0 16G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 16G 0 16G 0% /sys/fs/cgroup /dev/vda15 105M 4.4M 100M 5% /boot/efi tmpfs 3.2G 0 3.2G 0% /run/user/1001 shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/f24982eeb9a5f8ff4ddbcacf2acae97c8021b6a5936fee8641c4453fa98058d6/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/4e57d8d32c49209e4bed4bd992fd420f0d3e7a3d68015f428a845b8e7e04f74d/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/587974335a94cd91120ddb09c8c5063bd443e55cf263115abea744bf9d3f4bd4/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/a001bf50aa08ca797b6b515c76816083a469d643431a5df66496def42831e229/shm shm 64M 0 64M 0% /run/k3s/containerd/io.containerd.grpc.v1.cri/sandboxes/542eb8fefb5aa9239754422af18baf71a5c7123b99be5832f765c4960a12a76e/shm ---> free -m: total used free shared buff/cache available Mem: 32167 1551 24153 1 6462 30159 Swap: 0 0 0 ---> ip addr: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens3: mtu 1458 qdisc mq state UP group default qlen 1000 link/ether fa:16:3e:6e:16:3e brd ff:ff:ff:ff:ff:ff inet 10.30.106.63/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86070sec preferred_lft 86070sec inet6 fe80::f816:3eff:fe6e:163e/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1500 qdisc noqueue state DOWN group default link/ether 02:42:55:c7:9d:67 brd ff:ff:ff:ff:ff:ff inet 10.250.0.254/24 brd 10.250.0.255 scope global docker0 valid_lft forever preferred_lft forever inet6 fe80::42:55ff:fec7:9d67/64 scope link valid_lft forever preferred_lft forever 4: flannel.1: mtu 1408 qdisc noqueue state UNKNOWN group default link/ether fa:49:cf:2e:70:79 brd ff:ff:ff:ff:ff:ff inet 10.42.0.0/32 scope global flannel.1 valid_lft forever preferred_lft forever inet6 fe80::f849:cfff:fe2e:7079/64 scope link valid_lft forever preferred_lft forever 5: cni0: mtu 1408 qdisc noqueue state UP group default qlen 1000 link/ether 3a:82:e4:32:9d:3b brd ff:ff:ff:ff:ff:ff inet 10.42.0.1/24 brd 10.42.0.255 scope global cni0 valid_lft forever preferred_lft forever inet6 fe80::3882:e4ff:fe32:9d3b/64 scope link valid_lft forever preferred_lft forever 6: veth83727a9a@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 26:00:b3:0b:59:6a brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::2400:b3ff:fe0b:596a/64 scope link valid_lft forever preferred_lft forever 8: vethbb08ba09@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether f6:62:ef:09:ce:22 brd ff:ff:ff:ff:ff:ff link-netnsid 2 inet6 fe80::f462:efff:fe09:ce22/64 scope link valid_lft forever preferred_lft forever 10: veth956587a2@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether ca:f7:ae:9c:aa:00 brd ff:ff:ff:ff:ff:ff link-netnsid 4 inet6 fe80::c8f7:aeff:fe9c:aa00/64 scope link valid_lft forever preferred_lft forever 13: veth028655ee@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether 0a:9f:cd:35:85:76 brd ff:ff:ff:ff:ff:ff link-netnsid 5 inet6 fe80::89f:cdff:fe35:8576/64 scope link valid_lft forever preferred_lft forever 14: veth930738da@if2: mtu 1408 qdisc noqueue master cni0 state UP group default qlen 1000 link/ether e6:8b:fb:99:c8:9c brd ff:ff:ff:ff:ff:ff link-netnsid 6 inet6 fe80::e48b:fbff:fe99:c89c/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6131) 10/29/26 _x86_64_ (8 CPU) 08:54:13 LINUX RESTART (8 CPU) 08:55:01 tps rtps wtps bread/s bwrtn/s 08:56:01 422.98 71.82 351.16 3526.48 158339.74 08:57:01 129.94 0.02 129.92 0.13 74292.70 08:58:01 193.07 3.68 189.39 510.31 95044.03 08:59:01 99.15 20.45 78.70 770.54 12340.48 Average: 211.28 23.99 187.29 1201.82 85003.79 08:55:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 08:56:01 25682160 30687016 7257060 22.03 118372 4991416 3370696 10.23 2805168 3857388 930944 08:57:01 24830320 30810508 8108900 24.62 120768 5925528 3306184 10.04 3178268 4296372 942640 08:58:01 25473244 30954480 7465976 22.67 126504 5514024 3214968 9.76 2351424 4569476 45684 08:59:01 24853224 30780980 8085996 24.55 137312 5916796 3393220 10.30 2634404 4866884 172988 Average: 25209737 30808246 7729483 23.47 125739 5586941 3321267 10.08 2742316 4397530 523064 08:55:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 08:56:01 vethc05d4f8 82.74 123.93 7.82 1476.95 0.00 0.00 0.00 0.12 08:56:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:56:01 cni0 33.84 34.08 20.13 91.72 0.00 0.00 0.85 0.00 08:56:01 ens3 597.65 327.93 11255.64 45.22 0.00 0.00 0.00 0.00 08:57:01 vethc05d4f8 5.25 7.75 0.45 18.35 0.00 0.00 0.00 0.00 08:57:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:57:01 cni0 11.45 12.61 2.28 1.41 0.00 0.00 0.12 0.00 08:57:01 ens3 8.66 6.21 18.56 0.80 0.00 0.00 0.00 0.00 08:58:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:58:01 cni0 11.76 13.08 2.38 1.46 0.00 0.00 0.08 0.00 08:58:01 ens3 284.89 158.19 5683.76 13.78 0.00 0.00 0.00 0.00 08:58:01 veth028655ee 0.18 0.67 0.01 0.05 0.00 0.00 0.00 0.00 08:59:01 flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 08:59:01 cni0 12.40 13.70 2.42 2.00 0.00 0.00 0.10 0.00 08:59:01 ens3 94.88 57.22 1469.80 10.86 0.00 0.00 0.00 0.00 08:59:01 veth028655ee 0.00 0.10 0.00 0.01 0.00 0.00 0.00 0.00 Average: flannel.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: cni0 17.36 18.37 6.80 24.15 0.00 0.00 0.29 0.00 Average: ens3 246.51 137.38 4606.75 17.66 0.00 0.00 0.00 0.00 Average: veth028655ee 0.05 0.19 0.00 0.01 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.15.0-192-generic (prd-ubuntu1804-docker-8c-8g-6131) 10/29/26 _x86_64_ (8 CPU) 08:54:13 LINUX RESTART (8 CPU) 08:55:01 CPU %user %nice %system %iowait %steal %idle 08:56:01 all 37.84 0.25 8.19 2.97 0.02 50.74 08:56:01 0 33.76 0.00 9.40 1.79 0.03 55.02 08:56:01 1 33.33 0.00 6.50 3.06 0.00 57.11 08:56:01 2 41.16 0.00 8.10 2.86 0.03 47.84 08:56:01 3 40.76 1.94 8.61 1.05 0.02 47.62 08:56:01 4 39.99 0.00 8.37 1.90 0.00 49.73 08:56:01 5 40.56 0.00 9.10 4.10 0.02 46.23 08:56:01 6 39.71 0.00 8.90 4.81 0.02 46.55 08:56:01 7 33.38 0.00 6.50 4.18 0.00 55.93 08:57:01 all 52.99 0.00 7.20 0.55 0.02 39.24 08:57:01 0 48.94 0.00 7.55 0.00 0.02 43.48 08:57:01 1 56.26 0.00 7.19 2.27 0.02 34.27 08:57:01 2 51.82 0.00 6.56 0.00 0.02 41.61 08:57:01 3 51.99 0.00 6.86 0.00 0.02 41.13 08:57:01 4 51.80 0.00 7.45 1.19 0.02 39.54 08:57:01 5 52.73 0.00 7.55 0.03 0.03 39.65 08:57:01 6 60.94 0.00 7.64 0.05 0.03 31.34 08:57:01 7 49.40 0.00 6.81 0.86 0.03 42.89 08:58:01 all 14.61 0.27 4.74 1.32 0.01 79.05 08:58:01 0 12.89 0.00 4.05 2.33 0.02 80.71 08:58:01 1 12.48 0.29 5.64 0.20 0.02 81.37 08:58:01 2 14.96 0.00 3.96 1.43 0.02 79.63 08:58:01 3 11.93 0.00 4.98 1.01 0.00 82.07 08:58:01 4 15.65 1.91 5.77 2.08 0.02 74.57 08:58:01 5 17.51 0.00 4.19 0.35 0.00 77.95 08:58:01 6 17.43 0.00 4.91 1.21 0.00 76.45 08:58:01 7 14.04 0.00 4.33 1.94 0.00 79.69 08:59:01 all 10.16 0.00 1.79 0.67 0.01 87.37 08:59:01 0 6.62 0.00 1.79 0.70 0.00 90.89 08:59:01 1 12.73 0.00 2.29 0.37 0.00 84.61 08:59:01 2 12.90 0.00 1.45 0.13 0.00 85.51 08:59:01 3 5.64 0.00 1.64 2.00 0.02 90.71 08:59:01 4 15.37 0.00 2.19 1.14 0.02 81.29 08:59:01 5 5.82 0.00 1.90 0.57 0.02 91.70 08:59:01 6 5.40 0.00 1.28 0.07 0.02 93.23 08:59:01 7 16.76 0.00 1.79 0.35 0.02 81.09 Average: all 28.86 0.13 5.47 1.37 0.01 64.15 Average: 0 25.49 0.00 5.69 1.20 0.02 67.60 Average: 1 28.64 0.07 5.40 1.47 0.01 64.42 Average: 2 30.21 0.00 5.02 1.10 0.02 63.65 Average: 3 27.55 0.48 5.52 1.01 0.01 65.42 Average: 4 30.70 0.47 5.94 1.58 0.01 61.30 Average: 5 29.14 0.00 5.68 1.26 0.02 63.90 Average: 6 30.80 0.00 5.67 1.53 0.02 61.98 Average: 7 28.35 0.00 4.85 1.83 0.01 64.97