---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-7762 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 8.7G 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/loop0 62M 62M 0 100% /snap/core20/1405 /dev/loop1 68M 68M 0 100% /snap/lxd/22753 /dev/vda15 105M 6.1M 99M 6% /boot/efi /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 12787 1 2564 15020 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:46:ef:c5 brd ff:ff:ff:ff:ff:ff inet 10.30.107.60/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86250sec preferred_lft 86250sec inet6 fe80::f816:3eff:fe46:efc5/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-7762) 05/02/26 _x86_64_ (4 CPU) 19:18:59 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:01 327.88 58.11 269.77 0.00 4383.14 69923.15 0.00 19:21:01 158.46 28.35 130.11 0.00 1587.87 21120.76 0.00 Average: 243.17 43.23 199.94 0.00 2985.50 45521.95 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:01 13820884 15454328 556896 3.40 73544 1752444 1170020 6.71 713664 1598704 178348 19:21:01 13126284 15405944 582272 3.55 127284 2285596 1180588 6.77 878268 2049040 237756 Average: 13473584 15430136 569584 3.47 100414 2019020 1175304 6.74 795966 1823872 208052 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:01 lo 2.73 2.73 0.29 0.29 0.00 0.00 0.00 0.00 19:20:01 ens3 493.87 324.23 1969.20 80.44 0.00 0.00 0.00 0.00 19:21:01 lo 1.20 1.20 0.14 0.14 0.00 0.00 0.00 0.00 19:21:01 ens3 257.47 197.10 2662.01 45.89 0.00 0.00 0.00 0.00 Average: lo 1.97 1.97 0.21 0.21 0.00 0.00 0.00 0.00 Average: ens3 375.67 260.66 2315.61 63.16 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-7762) 05/02/26 _x86_64_ (4 CPU) 19:18:59 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:01 all 21.09 0.00 2.75 6.73 0.06 69.37 19:20:01 0 35.17 0.00 3.17 4.14 0.07 57.45 19:20:01 1 20.83 0.00 4.19 13.06 0.07 61.85 19:20:01 2 13.95 0.00 2.09 8.78 0.07 75.11 19:20:01 3 14.43 0.00 1.56 0.92 0.05 83.04 19:21:01 all 26.72 0.00 2.49 2.08 0.08 68.63 19:21:01 0 24.60 0.00 2.82 5.11 0.08 67.39 19:21:01 1 26.91 0.00 2.84 1.81 0.07 68.37 19:21:01 2 15.99 0.00 1.56 0.18 0.08 82.18 19:21:01 3 39.37 0.00 2.73 1.20 0.08 56.61 Average: all 23.90 0.00 2.62 4.41 0.07 69.00 Average: 0 29.89 0.00 2.99 4.62 0.08 62.42 Average: 1 23.87 0.00 3.52 7.44 0.07 65.11 Average: 2 14.96 0.00 1.83 4.50 0.08 78.63 Average: 3 26.90 0.00 2.14 1.06 0.07 69.83