---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-849 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: 2799.996 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 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/loop1 44M 44M 0 100% /snap/snapd/15177 /dev/loop2 68M 68M 0 100% /snap/lxd/22753 /dev/loop0 62M 62M 0 100% /snap/core20/1405 /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 602 12771 1 2635 15070 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:38:c3:dc brd ff:ff:ff:ff:ff:ff inet 10.30.106.121/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86250sec preferred_lft 86250sec inet6 fe80::f816:3eff:fe38:c3dc/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-849) 09/12/26 _x86_64_ (4 CPU) 19:17:48 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 265.66 17.45 248.21 0.00 1018.90 9758.79 0.00 19:20:01 167.12 21.18 145.94 0.00 1325.74 23478.19 0.00 Average: 216.80 19.30 197.50 0.00 1171.03 16560.86 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13622444 15447000 551532 3.36 78788 1932236 1430644 8.20 727096 1764368 349096 19:20:01 13118064 15470220 514528 3.14 128076 2354572 1123520 6.44 823124 2103412 205204 Average: 13370254 15458610 533030 3.25 103432 2143404 1277082 7.32 775110 1933890 277150 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 lo 1.47 1.47 0.17 0.17 0.00 0.00 0.00 0.00 19:19:02 ens3 185.39 124.05 1895.78 40.17 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 199.10 170.70 2139.44 31.54 0.00 0.00 0.00 0.00 Average: lo 1.24 1.24 0.14 0.14 0.00 0.00 0.00 0.00 Average: ens3 192.19 147.18 2016.59 35.89 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-849) 09/12/26 _x86_64_ (4 CPU) 19:17:48 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 21.89 0.00 2.01 2.97 0.01 73.11 19:19:02 0 5.63 0.00 1.45 1.79 0.00 91.13 19:19:02 1 18.98 0.00 1.66 1.22 0.02 78.13 19:19:02 2 11.75 0.00 1.77 7.01 0.02 79.45 19:19:02 3 51.39 0.00 3.16 1.90 0.02 43.53 19:20:01 all 26.26 0.00 2.48 1.51 0.02 69.73 19:20:01 0 16.53 0.00 1.54 0.62 0.02 81.29 19:20:01 1 20.25 0.00 2.38 1.38 0.02 75.97 19:20:01 2 21.45 0.00 2.47 2.96 0.02 73.10 19:20:01 3 46.95 0.00 3.52 1.11 0.03 48.38 Average: all 24.06 0.00 2.24 2.25 0.02 71.44 Average: 0 11.03 0.00 1.49 1.21 0.01 86.26 Average: 1 19.61 0.00 2.02 1.30 0.02 77.06 Average: 2 16.56 0.00 2.12 5.00 0.02 76.31 Average: 3 49.20 0.00 3.34 1.51 0.03 45.93