---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-2574 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/loop0 62M 62M 0 100% /snap/core20/1405 /dev/loop1 68M 68M 0 100% /snap/lxd/22753 /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 648 12727 1 2633 15025 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:50:be:1c brd ff:ff:ff:ff:ff:ff inet 10.30.107.1/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86243sec preferred_lft 86243sec inet6 fe80::f816:3eff:fe50:be1c/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-2574) 10/17/26 _x86_64_ (4 CPU) 19:17:56 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:01 274.01 39.93 234.08 0.00 3585.14 29339.33 0.00 19:20:01 169.89 27.75 142.14 0.00 1513.48 21684.00 0.00 Average: 221.96 33.84 188.12 0.00 2549.48 25512.30 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:01 13783156 15436800 569824 3.48 73280 1775096 1167360 6.69 727000 1619468 190040 19:20:01 13027732 15368796 614336 3.75 128060 2341696 1235456 7.08 907124 2105988 230520 Average: 13405444 15402798 592080 3.61 100670 2058396 1201408 6.89 817062 1862728 210280 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:01 lo 1.80 1.80 0.21 0.21 0.00 0.00 0.00 0.00 19:19:01 ens3 455.02 300.32 2078.42 79.96 0.00 0.00 0.00 0.00 19:20:01 lo 1.13 1.13 0.12 0.12 0.00 0.00 0.00 0.00 19:20:01 ens3 245.44 180.65 2528.86 37.79 0.00 0.00 0.00 0.00 Average: lo 1.47 1.47 0.16 0.16 0.00 0.00 0.00 0.00 Average: ens3 350.25 240.49 2303.60 58.88 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-2574) 10/17/26 _x86_64_ (4 CPU) 19:17:56 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:01 all 21.81 0.00 2.49 3.10 0.00 72.60 19:19:01 0 17.63 0.00 3.04 2.82 0.00 76.51 19:19:01 1 28.74 0.00 2.34 5.77 0.00 63.15 19:19:01 2 29.86 0.00 3.15 2.36 0.00 64.62 19:19:01 3 11.03 0.00 1.44 1.46 0.00 86.08 19:20:01 all 27.05 0.00 2.68 1.45 0.00 68.81 19:20:01 0 40.91 0.00 3.99 1.27 0.00 53.83 19:20:01 1 20.73 0.00 1.91 3.09 0.00 74.27 19:20:01 2 21.60 0.00 2.63 1.07 0.00 74.70 19:20:01 3 24.95 0.00 2.19 0.38 0.00 72.47 Average: all 24.43 0.00 2.59 2.28 0.00 70.70 Average: 0 29.26 0.00 3.52 2.05 0.00 65.17 Average: 1 24.73 0.00 2.12 4.43 0.00 68.71 Average: 2 25.73 0.00 2.89 1.72 0.00 69.67 Average: 3 17.99 0.00 1.81 0.92 0.00 79.27