---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-81146 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 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/loop0 62M 62M 0 100% /snap/core20/1405 /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 643 12956 1 2409 15040 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:71:18:d7 brd ff:ff:ff:ff:ff:ff inet 10.30.107.101/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86224sec preferred_lft 86224sec inet6 fe80::f816:3eff:fe71:18d7/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-81146) 11/02/24 _x86_64_ (4 CPU) 19:19:36 LINUX RESTART (4 CPU) 19:20:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:21:03 92.45 20.10 72.35 0.00 1320.98 7401.58 0.00 19:22:01 146.53 13.12 133.41 0.00 401.72 17725.08 0.00 Average: 119.03 16.67 102.36 0.00 869.14 12475.86 0.00 19:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:21:03 13712196 15417120 595992 3.64 78116 1807368 1433440 8.22 787952 1624248 223812 19:22:01 13344676 15476836 517808 3.16 125784 2139572 1163660 6.67 799612 1915636 180712 Average: 13528436 15446978 556900 3.40 101950 1973470 1298550 7.44 793782 1769942 202262 19:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:21:03 lo 1.53 1.53 0.16 0.16 0.00 0.00 0.00 0.00 19:21:03 ens3 97.65 64.77 1124.67 14.62 0.00 0.00 0.00 0.00 19:22:01 lo 0.90 0.90 0.09 0.09 0.00 0.00 0.00 0.00 19:22:01 ens3 138.08 124.05 1423.21 30.54 0.00 0.00 0.00 0.00 Average: lo 1.22 1.22 0.13 0.13 0.00 0.00 0.00 0.00 Average: ens3 117.52 93.91 1271.41 22.44 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-81146) 11/02/24 _x86_64_ (4 CPU) 19:19:36 LINUX RESTART (4 CPU) 19:20:01 CPU %user %nice %system %iowait %steal %idle 19:21:03 all 20.47 0.00 1.63 4.46 0.06 73.38 19:21:03 0 17.87 0.00 1.37 0.47 0.05 80.24 19:21:03 1 33.58 0.00 2.65 3.27 0.08 60.42 19:21:03 2 17.82 0.00 1.59 12.31 0.07 68.22 19:21:03 3 12.54 0.00 0.89 1.81 0.05 84.71 19:22:01 all 21.77 0.00 1.88 8.66 0.08 67.61 19:22:01 0 32.38 0.00 2.61 3.88 0.07 61.06 19:22:01 1 13.85 0.00 1.35 10.99 0.07 73.75 19:22:01 2 9.52 0.00 1.57 2.39 0.09 86.44 19:22:01 3 31.26 0.00 1.99 17.37 0.10 49.27 Average: all 21.11 0.00 1.75 6.52 0.07 70.55 Average: 0 25.00 0.00 1.98 2.15 0.06 70.82 Average: 1 23.90 0.00 2.01 7.05 0.08 66.96 Average: 2 13.76 0.00 1.58 7.45 0.08 77.14 Average: 3 21.75 0.00 1.43 9.46 0.08 67.28