---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-13742 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: 2799.998 BogoMIPS: 5599.99 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 nrip_save 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 8.6G 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/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop1 62M 62M 0 100% /snap/core20/1405 /dev/loop2 44M 44M 0 100% /snap/snapd/15177 /dev/loop0 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 596 12995 1 2416 15085 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:df:e9:1f brd ff:ff:ff:ff:ff:ff inet 10.30.107.153/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86226sec preferred_lft 86226sec inet6 fe80::f816:3eff:fedf:e91f/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-13742) 03/16/24 _x86_64_ (4 CPU) 19:19:18 LINUX RESTART (4 CPU) 19:20:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:21:01 132.39 28.38 104.02 0.00 1481.89 12338.36 0.00 19:22:01 116.45 2.90 113.55 0.00 153.04 16840.66 0.00 Average: 124.42 15.64 108.78 0.00 817.46 14589.51 0.00 19:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:21:01 13255980 15069388 934896 5.70 83420 1906424 1625124 9.32 1144060 1709280 128536 19:22:01 13314260 15453660 538232 3.28 125108 2148808 1168068 6.70 826760 1915988 26424 Average: 13285120 15261524 736564 4.49 104264 2027616 1396596 8.01 985410 1812634 77480 19:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:21:01 ens3 181.25 153.07 1934.81 46.44 0.00 0.00 0.00 0.00 19:21:01 lo 0.93 0.93 0.10 0.10 0.00 0.00 0.00 0.00 19:22:01 ens3 46.46 37.73 341.15 16.23 0.00 0.00 0.00 0.00 19:22:01 lo 1.33 1.33 0.13 0.13 0.00 0.00 0.00 0.00 Average: ens3 113.86 95.40 1137.98 31.34 0.00 0.00 0.00 0.00 Average: lo 1.13 1.13 0.12 0.12 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-13742) 03/16/24 _x86_64_ (4 CPU) 19:19:18 LINUX RESTART (4 CPU) 19:20:01 CPU %user %nice %system %iowait %steal %idle 19:21:01 all 27.06 0.00 2.03 2.51 0.09 68.30 19:21:01 0 23.43 0.00 2.13 2.49 0.08 71.87 19:21:01 1 53.52 0.00 3.71 2.74 0.10 39.93 19:21:01 2 17.10 0.00 1.49 4.64 0.08 76.69 19:21:01 3 14.35 0.00 0.83 0.20 0.08 84.55 19:22:01 all 20.27 0.00 1.77 3.67 0.07 74.21 19:22:01 0 5.76 0.00 0.99 0.99 0.05 92.22 19:22:01 1 23.93 0.00 1.49 2.92 0.08 71.57 19:22:01 2 26.97 0.00 2.61 6.13 0.08 64.21 19:22:01 3 24.46 0.00 1.99 4.66 0.07 68.82 Average: all 23.67 0.00 1.90 3.09 0.08 71.25 Average: 0 14.59 0.00 1.55 1.74 0.07 82.05 Average: 1 38.73 0.00 2.60 2.83 0.09 55.75 Average: 2 22.03 0.00 2.05 5.38 0.08 70.46 Average: 3 19.37 0.00 1.40 2.42 0.07 76.73