---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-13812 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/loop2 44M 44M 0 100% /snap/snapd/15177 /dev/loop1 68M 68M 0 100% /snap/lxd/22753 /dev/loop0 62M 62M 0 100% /snap/core20/1405 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 609 12973 1 2425 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:79:e7:99 brd ff:ff:ff:ff:ff:ff inet 10.30.106.220/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86226sec preferred_lft 86226sec inet6 fe80::f816:3eff:fe79:e799/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-13812) 01/20/24 _x86_64_ (4 CPU) 19:18:38 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:02 87.25 12.05 75.20 0.00 1050.62 8289.57 0.00 19:21:01 138.94 20.37 118.57 0.00 624.17 15945.50 0.00 Average: 112.88 16.17 96.71 0.00 839.19 12085.37 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:02 13733408 15438484 570056 3.48 76872 1814272 1189452 6.82 760432 1631320 187908 19:21:01 13318200 15457844 531160 3.24 124100 2152344 1123928 6.44 818824 1920748 226916 Average: 13525804 15448164 550608 3.36 100486 1983308 1156690 6.63 789628 1776034 207412 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:02 ens3 63.84 46.06 1069.92 9.77 0.00 0.00 0.00 0.00 19:20:02 lo 1.47 1.47 0.16 0.16 0.00 0.00 0.00 0.00 19:21:01 ens3 241.91 175.78 1464.73 60.32 0.00 0.00 0.00 0.00 19:21:01 lo 1.15 1.15 0.11 0.11 0.00 0.00 0.00 0.00 Average: ens3 152.13 110.38 1265.67 34.83 0.00 0.00 0.00 0.00 Average: lo 1.31 1.31 0.14 0.14 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-13812) 01/20/24 _x86_64_ (4 CPU) 19:18:38 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:02 all 21.03 0.00 1.69 2.22 0.06 75.00 19:20:02 0 26.85 0.00 2.03 1.25 0.07 69.79 19:20:02 1 29.63 0.00 2.05 0.42 0.05 67.85 19:20:02 2 14.82 0.00 1.67 1.60 0.03 81.87 19:20:02 3 12.76 0.00 1.00 5.62 0.08 80.54 19:21:01 all 27.77 0.00 2.42 2.26 0.08 67.47 19:21:01 0 19.21 0.00 2.25 2.54 0.10 75.90 19:21:01 1 43.24 0.00 3.57 1.36 0.08 51.75 19:21:01 2 29.80 0.00 2.13 1.17 0.09 66.81 19:21:01 3 18.84 0.00 1.72 3.96 0.05 75.43 Average: all 24.37 0.00 2.05 2.24 0.07 71.27 Average: 0 23.06 0.00 2.14 1.89 0.08 72.82 Average: 1 36.37 0.00 2.80 0.88 0.07 59.88 Average: 2 22.25 0.00 1.90 1.39 0.06 74.41 Average: 3 15.77 0.00 1.36 4.80 0.07 78.01