---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-27670 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/loop1 68M 68M 0 100% /snap/lxd/22753 /dev/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop0 62M 62M 0 100% /snap/core20/1405 /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 667 12869 1 2471 15017 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:3d:29:5a brd ff:ff:ff:ff:ff:ff inet 10.30.107.197/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86249sec preferred_lft 86249sec inet6 fe80::f816:3eff:fe3d:295a/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-27670) 07/12/25 _x86_64_ (4 CPU) 19:17:57 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 349.09 39.78 309.32 0.00 3620.73 77358.84 0.00 19:20:01 164.65 28.37 136.28 0.00 1573.16 19097.93 0.00 Average: 257.65 34.12 223.53 0.00 2605.55 48473.14 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13765484 15405992 612812 3.74 74204 1749236 1248280 7.16 761948 1602924 177740 19:20:01 13173756 15367868 627160 3.83 127468 2193452 1234760 7.08 908020 1969844 192952 Average: 13469620 15386930 619986 3.78 100836 1971344 1241520 7.12 834984 1786384 185346 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 ens3 455.44 279.74 1854.73 77.34 0.00 0.00 0.00 0.00 19:19:02 lo 2.00 2.00 0.23 0.23 0.00 0.00 0.00 0.00 19:20:01 ens3 245.94 180.77 1857.96 38.94 0.00 0.00 0.00 0.00 19:20:01 lo 1.22 1.22 0.13 0.13 0.00 0.00 0.00 0.00 Average: ens3 351.57 230.67 1856.33 58.30 0.00 0.00 0.00 0.00 Average: lo 1.61 1.61 0.18 0.18 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-27670) 07/12/25 _x86_64_ (4 CPU) 19:17:57 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 22.19 0.00 2.44 3.80 0.08 71.50 19:19:02 0 14.43 0.00 3.06 4.93 0.10 77.48 19:19:02 1 15.12 0.00 1.67 5.80 0.07 77.34 19:19:02 2 44.87 0.00 2.91 2.56 0.08 49.57 19:19:02 3 14.38 0.00 2.12 1.91 0.05 81.54 19:20:01 all 27.78 0.00 2.34 1.44 0.08 68.37 19:20:01 0 18.66 0.00 2.33 3.07 0.07 75.88 19:20:01 1 31.27 0.00 2.33 0.97 0.10 65.33 19:20:01 2 22.92 0.00 1.35 0.52 0.07 75.14 19:20:01 3 38.33 0.00 3.35 1.19 0.09 57.04 Average: all 24.96 0.00 2.39 2.63 0.08 69.94 Average: 0 16.52 0.00 2.69 4.01 0.08 76.69 Average: 1 23.13 0.00 2.00 3.40 0.08 71.38 Average: 2 33.94 0.00 2.13 1.55 0.08 62.31 Average: 3 26.25 0.00 2.73 1.55 0.07 69.40