---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-16922 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/loop1 62M 62M 0 100% /snap/core20/1405 /dev/loop0 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 653 12858 1 2496 15029 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:f1:13:6c brd ff:ff:ff:ff:ff:ff inet 10.30.107.40/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86251sec preferred_lft 86251sec inet6 fe80::f816:3eff:fef1:136c/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-16922) 02/14/26 _x86_64_ (4 CPU) 19:17:52 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:01 364.99 46.54 318.45 0.00 3800.30 11943.21 0.00 19:20:01 168.89 21.01 147.88 0.00 1338.18 22765.29 0.00 Average: 266.94 33.78 233.16 0.00 2569.24 17354.25 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:01 13765232 15474304 540148 3.29 77852 1811296 1128636 6.47 699216 1660324 237036 19:20:01 13193684 15412440 584036 3.56 127668 2220128 1179816 6.76 869440 1992648 104640 Average: 13479458 15443372 562092 3.43 102760 2015712 1154226 6.62 784328 1826486 170838 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:01 lo 1.47 1.47 0.18 0.18 0.00 0.00 0.00 0.00 19:19:01 ens3 405.77 273.10 2004.42 81.90 0.00 0.00 0.00 0.00 19:20:01 lo 1.33 1.33 0.14 0.14 0.00 0.00 0.00 0.00 19:20:01 ens3 206.53 167.11 2064.43 35.24 0.00 0.00 0.00 0.00 Average: lo 1.40 1.40 0.16 0.16 0.00 0.00 0.00 0.00 Average: ens3 306.15 220.10 2034.42 58.57 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-16922) 02/14/26 _x86_64_ (4 CPU) 19:17:52 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:01 all 23.90 0.00 2.21 2.93 0.06 70.90 19:19:01 0 34.57 0.00 2.15 1.00 0.05 62.22 19:19:01 1 10.83 0.00 1.62 2.14 0.05 85.36 19:19:01 2 25.29 0.00 2.21 1.20 0.07 71.23 19:19:01 3 24.90 0.00 2.85 7.40 0.07 64.78 19:20:01 all 26.69 0.00 2.29 1.60 0.07 69.35 19:20:01 0 31.42 0.00 2.63 1.17 0.08 64.69 19:20:01 1 13.46 0.00 1.75 2.73 0.08 81.98 19:20:01 2 21.47 0.00 1.99 1.93 0.05 74.56 19:20:01 3 40.54 0.00 2.79 0.55 0.08 56.03 Average: all 25.30 0.00 2.25 2.26 0.07 70.12 Average: 0 33.00 0.00 2.39 1.08 0.07 63.46 Average: 1 12.16 0.00 1.69 2.43 0.07 83.66 Average: 2 23.39 0.00 2.10 1.56 0.06 72.89 Average: 3 32.73 0.00 2.82 3.97 0.08 60.40