---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-6911 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/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 624 12740 1 2643 15059 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:04:df:be brd ff:ff:ff:ff:ff:ff inet 10.30.106.40/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86235sec preferred_lft 86235sec inet6 fe80::f816:3eff:fe04:dfbe/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-6911) 10/31/26 _x86_64_ (4 CPU) 19:17:57 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:01 279.39 40.52 238.87 0.00 3630.92 74804.80 0.00 19:20:01 168.67 27.60 141.08 0.00 1498.95 20412.88 0.00 Average: 224.04 34.06 189.98 0.00 2565.03 47611.11 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:01 13841928 15474856 542584 3.31 70276 1747804 1161092 6.66 686012 1602884 176224 19:20:01 12555876 14917548 1075928 6.56 126708 2354496 1816120 10.41 1366388 2117188 281920 Average: 13198902 15196202 809256 4.94 98492 2051150 1488606 8.53 1026200 1860036 229072 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:01 lo 1.67 1.67 0.19 0.19 0.00 0.00 0.00 0.00 19:19:01 ens3 442.45 292.24 1783.34 77.00 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 246.93 191.20 2825.93 43.27 0.00 0.00 0.00 0.00 Average: lo 1.40 1.40 0.15 0.15 0.00 0.00 0.00 0.00 Average: ens3 344.70 241.72 2304.59 60.13 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-6911) 10/31/26 _x86_64_ (4 CPU) 19:17:57 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:01 all 19.68 0.00 2.44 3.26 0.01 74.61 19:19:01 0 11.60 0.00 2.39 2.04 0.02 83.96 19:19:01 1 24.73 0.00 2.24 2.09 0.02 70.93 19:19:01 2 13.90 0.00 2.63 7.98 0.00 75.49 19:19:01 3 28.48 0.00 2.51 0.94 0.00 68.08 19:20:01 all 26.08 0.00 2.64 1.65 0.01 69.62 19:20:01 0 24.70 0.00 2.35 0.37 0.00 72.58 19:20:01 1 17.88 0.00 2.14 3.70 0.02 76.27 19:20:01 2 47.03 0.00 4.68 2.29 0.02 45.98 19:20:01 3 14.79 0.00 1.41 0.27 0.02 83.52 Average: all 22.88 0.00 2.54 2.45 0.01 72.11 Average: 0 18.16 0.00 2.37 1.20 0.01 78.26 Average: 1 21.30 0.00 2.19 2.89 0.02 73.60 Average: 2 30.49 0.00 3.66 5.13 0.01 60.71 Average: 3 21.61 0.00 1.96 0.60 0.01 75.83