---> uname -a: Linux 4acced035dd2 3.10.0-1127.el7.x86_64 #1 SMP Tue Mar 31 23:36:51 UTC 2020 x86_64 Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 40 bits physical, 48 bits virtual CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 4 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 44 Model name: Westmere E56xx/L56xx/X56xx (IBRS update) Stepping: 1 CPU MHz: 2933.436 BogoMIPS: 5866.87 Virtualization: VT-x Hypervisor vendor: KVM Virtualization type: full L1d cache: 128 KiB L1i cache: 128 KiB L2 cache: 16 MiB L3 cache: 64 MiB NUMA node0 CPU(s): 0-3 Vulnerability Itlb multihit: KVM: Mitigation: Split huge pages Vulnerability L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT disabled Vulnerability Mds: Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline, IBPB Vulnerability Tsx async abort: Not affected Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq vmx ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes hypervisor lahf_lm ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust arat spec_ctrl intel_stibp ---> nproc: 4 ---> df -h: Filesystem Size Used Available Use% Mounted on overlay 50.0G 8.3G 41.7G 17% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 918.7M 0 918.7M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 8.3G 41.7G 17% /etc/resolv.conf /dev/vda1 50.0G 8.3G 41.7G 17% /etc/hostname /dev/vda1 50.0G 8.3G 41.7G 17% /etc/hosts /dev/vda1 50.0G 8.3G 41.7G 17% /w/workspace/i-build-images_snapcraft-builder@tmp /dev/vda1 50.0G 8.3G 41.7G 17% /var/log/sa /dev/vda1 50.0G 8.3G 41.7G 17% /w/workspace/i-build-images_snapcraft-builder ---> free -m: total used free shared buff/cache available Mem: 1837 744 120 0 972 1012 Swap: 1023 2 1021 ---> ip addr: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN 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 8: eth0@if9: mtu 1458 qdisc noqueue state UP link/ether 02:42:0a:fa:00:01 brd ff:ff:ff:ff:ff:ff inet 10.250.0.1/24 brd 10.250.0.255 scope global eth0 valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 3.10.0-1127.el7.x86_64 (centos-7-docker-5eb134fb-50d3-af0a-1802-9f6851a35141.vexxhost.lo) 07/14/20 _x86_64_ (4 CPU) 17:15:58 LINUX RESTART 17:17:02 tps rtps wtps bread/s bwrtn/s 17:18:01 216.03 16.32 199.71 1616.38 38225.76 17:19:01 380.31 195.72 184.59 13611.05 21169.69 17:20:01 620.31 454.60 165.71 27328.17 30697.12 17:21:01 1.33 0.75 0.58 56.62 10.36 17:22:01 0.40 0.03 0.37 1.07 5.28 17:23:01 0.35 0.12 0.23 74.87 2.38 17:24:01 0.32 0.00 0.32 0.00 3.63 Average: 174.14 95.61 78.53 6112.39 12818.28 17:17:02 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:18:01 236392 1645164 87.44 2596 917344 1432700 48.90 386244 964856 15176 17:19:01 73320 1808236 96.10 1492 1038524 1498480 51.14 502316 1009740 62420 17:20:01 421552 1460004 77.60 740 743004 1283364 43.80 412680 783060 12 17:21:01 449188 1432368 76.13 740 744764 1087956 37.13 387592 784472 8 17:22:01 449928 1431628 76.09 740 744768 1076660 36.74 387384 784136 8 17:23:01 447964 1433592 76.19 740 747024 1076700 36.75 387312 786380 8 17:24:01 448300 1433256 76.17 740 747024 1076896 36.75 387056 786380 8 Average: 360949 1520607 80.82 1113 811779 1218965 41.60 407226 842718 11091 17:17:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 17:18:01 veth9351152 396.50 481.97 30.35 3876.93 0.00 0.00 0.00 17:18:01 eth0 521.94 415.71 3906.85 46.28 0.00 0.00 0.00 17:18:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:18:01 docker0 396.50 481.97 24.93 3876.93 0.00 0.00 0.00 17:19:01 eth0 174.93 136.80 788.06 26.47 0.00 0.00 0.00 17:19:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:19:01 docker0 117.38 136.42 8.53 757.85 0.00 0.00 0.00 17:20:01 eth0 5.21 3.18 4.42 1.75 0.00 0.00 0.00 17:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:20:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:21:01 eth0 5.91 4.66 4.36 1.69 0.00 0.00 0.00 17:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:22:01 eth0 0.27 0.22 0.09 0.07 0.00 0.00 0.00 17:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:23:01 eth0 0.17 0.15 0.07 0.01 0.00 0.00 0.00 17:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:24:01 eth0 0.07 0.05 0.00 0.00 0.00 0.00 0.00 17:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 100.23 79.33 664.43 10.81 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 72.66 87.42 4.73 654.60 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-1127.el7.x86_64 (centos-7-docker-5eb134fb-50d3-af0a-1802-9f6851a35141.vexxhost.lo) 07/14/20 _x86_64_ (4 CPU) 17:15:58 LINUX RESTART 17:17:02 CPU %user %nice %system %iowait %steal %idle 17:18:01 all 12.79 0.00 5.42 1.48 0.07 80.23 17:18:01 0 17.61 0.00 5.60 2.60 0.09 74.11 17:18:01 1 10.93 0.00 5.28 1.11 0.09 82.59 17:18:01 2 11.94 0.00 5.77 0.38 0.07 81.85 17:18:01 3 10.74 0.00 5.03 1.89 0.07 82.27 17:19:01 all 7.79 0.00 5.88 7.39 0.12 78.81 17:19:01 0 7.32 0.00 6.32 6.86 0.10 79.40 17:19:01 1 7.28 0.00 5.69 5.95 0.13 80.95 17:19:01 2 7.84 0.00 5.66 7.42 0.10 78.98 17:19:01 3 8.72 0.00 5.86 9.35 0.15 75.91 17:20:01 all 5.90 0.00 8.07 14.43 0.31 71.30 17:20:01 0 5.59 0.00 7.19 16.61 0.37 70.23 17:20:01 1 5.96 0.00 7.59 13.37 0.30 72.78 17:20:01 2 6.26 0.00 8.93 15.68 0.25 68.87 17:20:01 3 5.81 0.00 8.54 11.98 0.31 73.36 17:21:01 all 0.29 0.00 0.21 0.00 0.01 99.49 17:21:01 0 0.22 0.00 0.30 0.00 0.00 99.48 17:21:01 1 0.13 0.00 0.15 0.00 0.00 99.72 17:21:01 2 0.60 0.00 0.15 0.00 0.02 99.23 17:21:01 3 0.18 0.00 0.22 0.00 0.02 99.58 17:22:01 all 0.16 0.00 0.04 0.00 0.00 99.80 17:22:01 0 0.02 0.00 0.03 0.00 0.00 99.95 17:22:01 1 0.07 0.00 0.07 0.00 0.00 99.87 17:22:01 2 0.50 0.00 0.02 0.00 0.00 99.48 17:22:01 3 0.03 0.00 0.02 0.00 0.00 99.95 17:23:01 all 0.15 0.00 0.03 0.00 0.00 99.82 17:23:01 0 0.03 0.00 0.03 0.00 0.00 99.93 17:23:01 1 0.07 0.00 0.05 0.00 0.00 99.88 17:23:01 2 0.03 0.00 0.03 0.00 0.00 99.93 17:23:01 3 0.52 0.00 0.03 0.02 0.00 99.43 17:24:01 all 0.15 0.00 0.02 0.00 0.00 99.82 17:24:01 0 0.05 0.00 0.03 0.00 0.00 99.92 17:24:01 1 0.03 0.00 0.03 0.00 0.02 99.92 17:24:01 2 0.02 0.00 0.03 0.00 0.00 99.95 17:24:01 3 0.52 0.00 0.02 0.00 0.00 99.47 Average: all 3.84 0.00 2.78 3.30 0.07 90.00 Average: 0 4.33 0.00 2.76 3.71 0.08 89.13 Average: 1 3.46 0.00 2.67 2.90 0.08 90.89 Average: 2 3.85 0.00 2.92 3.34 0.06 89.83 Average: 3 3.74 0.00 2.77 3.27 0.08 90.14