---> uname -a: Linux 50abbbd89488 3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018 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: 2933.396 BogoMIPS: 5866.79 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 L1tf: Mitigation; PTE Inversion; VMX SMT disabled, L1D conditional cache flushes Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline 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 7.1G 42.9G 14% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 919.1M 0 919.1M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 7.1G 42.9G 14% /etc/resolv.conf /dev/vda1 50.0G 7.1G 42.9G 14% /etc/hostname /dev/vda1 50.0G 7.1G 42.9G 14% /etc/hosts /dev/vda1 50.0G 7.1G 42.9G 14% /var/log/sa /dev/vda1 50.0G 7.1G 42.9G 14% /w/workspace/i-build-images_snapcraft-builder /dev/vda1 50.0G 7.1G 42.9G 14% /w/workspace/i-build-images_snapcraft-builder@tmp ---> free -m: total used free shared buff/cache available Mem: 1838 676 82 0 1079 1076 Swap: 1023 1 1022 ---> 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 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 02/29/20 _x86_64_ (4 CPU) 17:33:18 LINUX RESTART 17:34:01 tps rtps wtps bread/s bwrtn/s 17:35:01 236.66 60.91 175.75 6985.92 37973.71 17:36:01 582.25 417.43 164.82 20643.62 31833.22 17:37:01 5.73 0.05 5.68 1.60 253.11 17:38:01 1.17 0.02 1.15 0.53 17.74 Average: 206.49 119.61 86.88 6909.08 17524.89 17:34:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:35:01 76388 1805916 95.94 2620 1132104 1126596 38.44 389652 1149720 95104 17:36:01 558208 1324096 70.34 2328 703592 936132 31.94 350620 738524 4608 17:37:01 562120 1320184 70.14 2328 703560 925828 31.59 352428 735512 12 17:38:01 562860 1319444 70.10 2328 703564 917604 31.31 352144 735100 8 Average: 439894 1442410 76.63 2401 810705 976540 33.32 361211 839714 24933 17:34:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 17:35:01 eth0 417.36 332.90 4382.14 56.01 0.00 0.00 0.00 17:35:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:35:01 docker0 281.13 331.22 15.64 3910.76 0.00 0.00 0.00 17:36:01 eth0 3.55 1.75 2.67 1.36 0.00 0.00 0.00 17:36:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:36:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:37:01 eth0 0.50 0.32 0.31 0.22 0.00 0.00 0.00 17:37:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:37:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:38:01 eth0 0.17 0.15 0.01 0.01 0.00 0.00 0.00 17:38:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:38:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 105.45 83.82 1096.88 14.41 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 70.32 82.85 3.91 978.22 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 02/29/20 _x86_64_ (4 CPU) 17:33:18 LINUX RESTART 17:34:01 CPU %user %nice %system %iowait %steal %idle 17:35:01 all 15.77 0.00 7.03 2.25 0.00 74.95 17:35:01 0 14.02 0.00 8.66 2.25 0.00 75.08 17:35:01 1 17.92 0.00 6.44 2.43 0.02 73.19 17:35:01 2 12.12 0.00 6.93 2.93 0.00 78.03 17:35:01 3 18.98 0.00 6.15 1.40 0.02 73.45 17:36:01 all 5.71 0.00 7.15 14.77 0.03 72.33 17:36:01 0 5.36 0.00 7.27 13.57 0.03 73.77 17:36:01 1 6.08 0.00 6.94 13.61 0.02 73.35 17:36:01 2 5.74 0.00 7.05 15.66 0.03 71.52 17:36:01 3 5.67 0.00 7.27 16.28 0.03 70.75 17:37:01 all 0.15 0.00 0.05 0.00 0.00 99.79 17:37:01 0 0.03 0.00 0.07 0.00 0.00 99.90 17:37:01 1 0.50 0.00 0.07 0.00 0.00 99.43 17:37:01 2 0.03 0.00 0.05 0.00 0.00 99.92 17:37:01 3 0.05 0.00 0.08 0.00 0.00 99.87 17:38:01 all 0.16 0.00 0.05 0.00 0.00 99.79 17:38:01 0 0.07 0.00 0.05 0.00 0.00 99.88 17:38:01 1 0.47 0.00 0.02 0.00 0.02 99.50 17:38:01 2 0.07 0.00 0.03 0.00 0.00 99.90 17:38:01 3 0.07 0.00 0.05 0.00 0.00 99.88 Average: all 5.42 0.00 3.54 4.21 0.01 86.82 Average: 0 4.83 0.00 3.98 3.92 0.01 87.26 Average: 1 6.22 0.00 3.34 3.97 0.01 86.45 Average: 2 4.47 0.00 3.49 4.60 0.01 87.43 Average: 3 6.16 0.00 3.36 4.35 0.01 86.12