---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-6855 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: 2800.012 BogoMIPS: 5600.02 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/loop1 68M 68M 0 100% /snap/lxd/22753 /dev/loop2 44M 44M 0 100% /snap/snapd/15177 /dev/vda15 105M 6.1M 99M 6% /boot/efi tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 606 12762 1 2640 15066 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:fe:ac:43 brd ff:ff:ff:ff:ff:ff inet 10.30.107.193/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86247sec preferred_lft 86247sec inet6 fe80::f816:3eff:fefe:ac43/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-6855) 10/03/26 _x86_64_ (4 CPU) 19:17:51 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 264.09 17.21 246.88 0.00 1047.56 15826.03 0.00 19:20:01 175.11 28.57 146.53 0.00 1589.56 29106.27 0.00 Average: 219.97 22.84 197.13 0.00 1316.28 22410.36 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13762580 15523672 471140 2.87 78028 1871004 1101504 6.32 633020 1714960 290324 19:20:01 13057320 15414272 565920 3.45 127776 2358596 1186380 6.80 865560 2115612 202288 Average: 13409950 15468972 518530 3.16 102902 2114800 1143942 6.56 749290 1915286 246306 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 lo 1.33 1.33 0.16 0.16 0.00 0.00 0.00 0.00 19:19:02 ens3 384.50 241.78 2007.21 75.15 0.00 0.00 0.00 0.00 19:20:01 lo 1.02 1.02 0.11 0.11 0.00 0.00 0.00 0.00 19:20:01 ens3 261.33 183.99 2631.15 43.14 0.00 0.00 0.00 0.00 Average: lo 1.18 1.18 0.13 0.13 0.00 0.00 0.00 0.00 Average: ens3 323.43 213.12 2316.56 59.28 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-6855) 10/03/26 _x86_64_ (4 CPU) 19:17:51 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 22.52 0.00 2.35 2.93 0.01 72.20 19:19:02 0 29.61 0.00 3.49 4.81 0.02 62.07 19:19:02 1 17.37 0.00 1.69 2.28 0.00 78.66 19:19:02 2 12.86 0.00 1.62 0.47 0.00 85.05 19:19:02 3 30.19 0.00 2.57 4.15 0.02 63.08 19:20:01 all 27.55 0.00 2.71 1.60 0.02 68.12 19:20:01 0 14.51 0.00 2.05 2.90 0.02 80.52 19:20:01 1 20.22 0.00 2.44 1.30 0.00 76.03 19:20:01 2 52.03 0.00 4.05 1.94 0.03 41.94 19:20:01 3 23.46 0.00 2.29 0.27 0.02 73.96 Average: all 25.01 0.00 2.53 2.27 0.01 70.18 Average: 0 22.13 0.00 2.78 3.86 0.02 71.21 Average: 1 18.78 0.00 2.06 1.79 0.00 77.36 Average: 2 32.27 0.00 2.82 1.20 0.02 63.70 Average: 3 26.85 0.00 2.43 2.23 0.02 68.47