---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-13015 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: 2799.996 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 8.7G 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/loop1 68M 68M 0 100% /snap/lxd/22753 /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 656 12850 1 2501 15026 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:a2:99:1c brd ff:ff:ff:ff:ff:ff inet 10.30.107.79/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86248sec preferred_lft 86248sec inet6 fe80::f816:3eff:fea2:991c/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-13015) 11/15/25 _x86_64_ (4 CPU) 19:17:59 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 376.75 51.66 325.10 0.00 4272.35 84501.65 0.00 19:20:01 157.32 28.43 128.89 0.00 1573.84 19446.31 0.00 Average: 267.95 40.14 227.81 0.00 2934.32 52244.52 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13756180 15399924 615096 3.75 74040 1754900 1213996 6.96 766348 1607636 180252 19:20:01 13187716 15410672 581860 3.55 127484 2222696 1174540 6.73 865304 1997436 234964 Average: 13471948 15405298 598478 3.65 100762 1988798 1194268 6.85 815826 1802536 207608 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 ens3 400.53 245.99 1936.62 76.94 0.00 0.00 0.00 0.00 19:19:02 lo 2.73 2.73 0.29 0.29 0.00 0.00 0.00 0.00 19:20:01 ens3 238.78 181.14 2253.65 40.37 0.00 0.00 0.00 0.00 19:20:01 lo 1.02 1.02 0.12 0.12 0.00 0.00 0.00 0.00 Average: ens3 320.33 213.84 2093.82 58.80 0.00 0.00 0.00 0.00 Average: lo 1.88 1.88 0.20 0.20 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-13015) 11/15/25 _x86_64_ (4 CPU) 19:17:59 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 22.71 0.00 2.78 3.41 0.07 71.03 19:19:02 0 15.38 0.00 2.88 0.83 0.05 80.87 19:19:02 1 16.67 0.00 2.55 2.40 0.08 78.30 19:19:02 2 10.67 0.00 2.16 4.36 0.07 82.73 19:19:02 3 48.14 0.00 3.52 6.06 0.08 42.20 19:20:01 all 26.94 0.00 2.46 1.40 0.08 69.13 19:20:01 0 33.04 0.00 2.38 1.09 0.09 63.41 19:20:01 1 24.06 0.00 2.16 0.85 0.10 72.83 19:20:01 2 27.68 0.00 2.74 2.67 0.07 66.84 19:20:01 3 22.97 0.00 2.57 0.99 0.05 73.42 Average: all 24.81 0.00 2.62 2.41 0.07 70.09 Average: 0 24.11 0.00 2.63 0.96 0.07 72.24 Average: 1 20.34 0.00 2.35 1.63 0.09 75.58 Average: 2 19.12 0.00 2.45 3.52 0.07 74.84 Average: 3 35.65 0.00 3.04 3.54 0.07 57.70