---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-4461 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/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 /dev/loop1 68M 68M 0 100% /snap/lxd/22753 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 591 12947 2 2470 15086 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 fq_codel state UP group default qlen 1000 link/ether fa:16:3e:3e:c8:49 brd ff:ff:ff:ff:ff:ff inet 10.30.106.225/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86225sec preferred_lft 86225sec inet6 fe80::f816:3eff:fe3e:c849/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-4461) 11/25/23 _x86_64_ (4 CPU) 19:18:47 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:02 95.02 26.76 68.26 0.00 1959.41 7076.29 0.00 19:21:01 142.62 19.73 122.89 0.00 527.50 17119.56 0.00 Average: 118.62 23.27 95.35 0.00 1249.47 12055.73 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:02 13809704 15454892 557656 3.40 71744 1764908 1135504 6.51 742504 1589548 175480 19:21:01 13276200 15446284 542888 3.31 122780 2185084 1142232 6.55 834716 1955584 236852 Average: 13542952 15450588 550272 3.36 97262 1974996 1138868 6.53 788610 1772566 206166 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:02 ens3 237.18 142.78 1253.45 36.26 0.00 0.00 0.00 0.00 19:20:02 lo 1.60 1.60 0.17 0.17 0.00 0.00 0.00 0.00 19:21:01 ens3 187.66 151.50 1680.60 53.20 0.00 0.00 0.00 0.00 19:21:01 lo 1.02 1.02 0.10 0.10 0.00 0.00 0.00 0.00 Average: ens3 212.63 147.10 1465.23 44.66 0.00 0.00 0.00 0.00 Average: lo 1.31 1.31 0.14 0.14 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-4461) 11/25/23 _x86_64_ (4 CPU) 19:18:47 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:02 all 22.17 0.00 1.72 2.35 0.06 73.70 19:20:02 0 6.77 0.00 1.07 6.09 0.05 86.02 19:20:02 1 35.96 0.00 2.60 1.70 0.10 59.63 19:20:02 2 13.16 0.00 1.41 0.38 0.05 85.00 19:20:02 3 32.81 0.00 1.81 1.25 0.05 64.08 19:21:01 all 27.46 0.00 2.30 2.84 0.08 67.32 19:21:01 0 31.87 0.00 2.50 6.08 0.08 59.46 19:21:01 1 19.35 0.00 1.90 0.46 0.08 78.20 19:21:01 2 33.67 0.00 2.55 1.02 0.07 62.69 19:21:01 3 24.96 0.00 2.26 3.80 0.07 68.91 Average: all 24.79 0.00 2.01 2.59 0.07 70.54 Average: 0 19.22 0.00 1.78 6.08 0.07 72.85 Average: 1 27.73 0.00 2.26 1.09 0.09 68.83 Average: 2 23.29 0.00 1.97 0.70 0.06 73.99 Average: 3 28.91 0.00 2.03 2.52 0.06 66.48