---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-18181 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/loop1 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 /dev/loop2 44M 44M 0 100% /snap/snapd/15177 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 672 12696 1 2640 15014 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:d0:55:03 brd ff:ff:ff:ff:ff:ff inet 10.30.107.61/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86170sec preferred_lft 86170sec inet6 fe80::f816:3eff:fed0:5503/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-18181) 09/05/26 _x86_64_ (4 CPU) 19:17:56 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 336.70 40.07 296.63 0.00 3639.72 31342.75 0.00 19:20:01 83.41 8.17 75.24 0.00 295.41 14614.08 0.00 19:21:01 69.61 19.61 49.99 0.00 1211.93 6392.80 0.00 Average: 163.70 22.70 141.00 0.00 1723.73 17466.49 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13805072 15434776 586396 3.58 70944 1741520 1162464 6.66 727268 1599992 193840 19:20:01 13281632 15185772 822928 5.02 79216 1996484 1588452 9.11 992292 1835976 57436 19:21:01 12680488 14918448 1078644 6.58 111100 2264292 1768768 10.14 1335224 2045132 185856 Average: 13255731 15179665 829323 5.06 87087 2000765 1506561 8.64 1018261 1827033 145711 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 ens3 301.65 221.63 1753.86 73.18 0.00 0.00 0.00 0.00 19:19:02 lo 2.08 2.08 0.24 0.24 0.00 0.00 0.00 0.00 19:20:01 ens3 235.81 169.34 1784.45 19.62 0.00 0.00 0.00 0.00 19:20:01 lo 0.69 0.69 0.07 0.07 0.00 0.00 0.00 0.00 19:21:01 ens3 209.92 161.31 1105.89 27.51 0.00 0.00 0.00 0.00 19:21:01 lo 0.75 0.75 0.09 0.09 0.00 0.00 0.00 0.00 Average: ens3 249.20 184.18 1546.76 40.22 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 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-18181) 09/05/26 _x86_64_ (4 CPU) 19:17:56 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 20.46 0.00 2.25 2.96 0.01 74.33 19:19:02 0 13.20 0.00 2.21 7.58 0.02 76.99 19:19:02 1 32.99 0.00 2.37 1.45 0.02 63.16 19:19:02 2 26.94 0.00 2.79 2.15 0.02 68.10 19:19:02 3 8.64 0.00 1.61 0.65 0.00 89.10 19:20:01 all 10.72 0.00 0.89 0.64 0.01 87.73 19:20:01 0 6.85 0.00 0.53 0.09 0.00 92.54 19:20:01 1 24.24 0.00 1.61 1.03 0.02 73.10 19:20:01 2 5.44 0.00 0.86 1.05 0.00 92.65 19:20:01 3 6.40 0.00 0.57 0.39 0.02 92.63 19:21:01 all 14.04 0.00 1.46 0.84 0.01 83.64 19:21:01 0 12.34 0.00 1.65 0.12 0.02 85.87 19:21:01 1 19.46 0.00 1.93 2.37 0.02 76.22 19:21:01 2 11.94 0.00 1.49 0.39 0.02 86.17 19:21:01 3 12.40 0.00 0.77 0.50 0.00 86.32 Average: all 15.09 0.00 1.54 1.48 0.01 81.88 Average: 0 10.82 0.00 1.47 2.60 0.01 85.10 Average: 1 25.57 0.00 1.97 1.62 0.02 70.82 Average: 2 14.81 0.00 1.72 1.20 0.01 82.26 Average: 3 9.15 0.00 0.99 0.52 0.01 89.34