---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-1644 5.4.0-148-generic #165-Ubuntu SMP Tue Apr 18 08:53:12 UTC 2023 x86_64 x86_64 x86_64 GNU/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: 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: 128 KiB L1i cache: 128 KiB L2 cache: 2 MiB L3 cache: 64 MiB NUMA node0 CPU(s): 0-3 Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Mmio stale data: Not affected Vulnerability Retbleed: Vulnerable Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIBP disabled, RSB filling, PBRSB-eIBRS Not affected Vulnerability Srbds: Not affected 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 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm rep_good nopl 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 wbnoinvd arat npt lbrv nrip_save tsc_scale vmcb_clean flushbyasid pausefilter pfthreshold v_vmsave_vmload vgif umip rdpid arch_capabilities ---> nproc: 4 ---> df -h: Filesystem Size Used Avail Use% Mounted on udev 7.9G 0 7.9G 0% /dev tmpfs 1.6G 1.1M 1.6G 1% /run /dev/vda1 78G 8.8G 69G 12% / tmpfs 7.9G 0 7.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup /dev/loop0 62M 62M 0 100% /snap/core20/1405 /dev/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop1 44M 44M 0 100% /snap/snapd/15177 /dev/loop2 68M 68M 0 100% /snap/lxd/22753 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 624 12744 1 2640 15052 Swap: 1023 0 1023 ---> 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:60:56:ba brd ff:ff:ff:ff:ff:ff inet 10.30.106.215/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86235sec preferred_lft 86235sec inet6 fe80::f816:3eff:fe60:56ba/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-1644) 11/07/26 _x86_64_ (4 CPU) 19:17:58 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 262.80 41.29 221.51 0.00 3698.23 87453.12 0.00 19:20:01 169.28 28.03 141.25 0.00 1521.78 21468.11 0.00 Average: 216.43 34.71 181.72 0.00 2619.24 54740.56 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13858488 15480112 530668 3.24 69968 1744732 1114884 6.39 679416 1593316 198404 19:20:01 12687760 14957168 1029900 6.28 113044 2298732 1755676 10.07 1303324 2064212 228432 Average: 13273124 15218640 780284 4.76 91506 2021732 1435280 8.23 991370 1828764 213418 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 ens3 378.94 261.86 1793.89 76.00 0.00 0.00 0.00 0.00 19:19:02 lo 1.80 1.80 0.20 0.20 0.00 0.00 0.00 0.00 19:20:01 ens3 248.99 187.83 2869.19 39.75 0.00 0.00 0.00 0.00 19:20:01 lo 0.95 0.95 0.11 0.11 0.00 0.00 0.00 0.00 Average: ens3 314.52 225.16 2326.98 58.03 0.00 0.00 0.00 0.00 Average: lo 1.38 1.38 0.16 0.16 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-1644) 11/07/26 _x86_64_ (4 CPU) 19:17:58 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 19.69 0.00 2.88 3.53 0.00 73.91 19:19:02 0 25.15 0.00 4.03 8.91 0.00 61.90 19:19:02 1 13.20 0.00 1.91 0.76 0.00 84.13 19:19:02 2 29.04 0.00 2.71 1.05 0.00 67.20 19:19:02 3 11.45 0.00 2.89 3.42 0.00 82.24 19:20:01 all 25.36 0.00 2.26 1.73 0.02 70.63 19:20:01 0 19.62 0.00 1.75 4.03 0.02 74.59 19:20:01 1 46.09 0.00 3.65 1.10 0.03 49.13 19:20:01 2 19.96 0.00 2.06 0.87 0.03 77.08 19:20:01 3 15.82 0.00 1.57 0.93 0.00 81.68 Average: all 22.50 0.00 2.57 2.64 0.01 72.28 Average: 0 22.40 0.00 2.90 6.48 0.01 68.21 Average: 1 29.46 0.00 2.77 0.93 0.02 66.83 Average: 2 24.54 0.00 2.39 0.96 0.02 72.10 Average: 3 13.62 0.00 2.23 2.18 0.00 81.96