---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-3237 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 9.1G 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 44M 44M 0 100% /snap/snapd/15177 /dev/loop2 68M 68M 0 100% /snap/lxd/22753 /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 698 12321 1 2989 14976 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:f2:15:a1 brd ff:ff:ff:ff:ff:ff inet 10.30.106.174/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86249sec preferred_lft 86249sec inet6 fe80::f816:3eff:fef2:15a1/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-3237) 11/14/26 _x86_64_ (4 CPU) 19:17:57 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 272.40 40.86 231.54 0.00 3671.12 41919.95 0.00 19:20:01 179.26 28.76 150.50 0.00 1608.68 27173.31 0.00 Average: 226.22 34.86 191.36 0.00 2648.56 34608.58 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13870680 15491636 517220 3.16 70384 1745976 1125360 6.45 670872 1591804 201028 19:20:01 13095224 15444992 540120 3.29 128072 2349700 1188576 6.81 833092 2113580 286440 Average: 13482952 15468314 528670 3.22 99228 2047838 1156968 6.63 751982 1852692 243734 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 lo 1.67 1.67 0.19 0.19 0.00 0.00 0.00 0.00 19:19:02 ens3 329.75 249.33 1793.16 75.21 0.00 0.00 0.00 0.00 19:20:01 lo 1.15 1.15 0.12 0.12 0.00 0.00 0.00 0.00 19:20:01 ens3 239.25 179.53 2873.94 37.25 0.00 0.00 0.00 0.00 Average: lo 1.41 1.41 0.16 0.16 0.00 0.00 0.00 0.00 Average: ens3 284.88 214.72 2329.01 56.39 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-3237) 11/14/26 _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 19.89 0.00 2.42 3.18 0.01 74.49 19:19:02 0 9.77 0.00 1.37 0.48 0.00 88.38 19:19:02 1 19.39 0.00 3.09 3.86 0.02 73.65 19:19:02 2 24.28 0.00 2.12 1.25 0.02 72.33 19:19:02 3 26.24 0.00 3.11 7.15 0.02 63.48 19:20:01 all 26.51 0.00 2.57 1.67 0.01 69.24 19:20:01 0 18.16 0.00 2.00 1.32 0.00 78.51 19:20:01 1 41.84 0.00 3.41 1.17 0.02 53.57 19:20:01 2 30.28 0.00 3.09 1.39 0.02 65.22 19:20:01 3 15.78 0.00 1.79 2.78 0.00 79.65 Average: all 23.17 0.00 2.50 2.43 0.01 71.89 Average: 0 13.91 0.00 1.69 0.90 0.00 83.51 Average: 1 30.51 0.00 3.25 2.53 0.02 63.70 Average: 2 27.26 0.00 2.60 1.32 0.02 68.80 Average: 3 21.06 0.00 2.46 4.98 0.01 71.49