---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-6082 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/loop1 44M 44M 0 100% /snap/snapd/15177 /dev/loop0 68M 68M 0 100% /snap/lxd/22753 /dev/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop2 62M 62M 0 100% /snap/core20/1405 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 669 12777 1 2562 15013 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:f0:6f:e2 brd ff:ff:ff:ff:ff:ff inet 10.30.106.154/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86252sec preferred_lft 86252sec inet6 fe80::f816:3eff:fef0:6fe2/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-6082) 04/25/26 _x86_64_ (4 CPU) 19:17:53 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 353.44 45.09 308.35 0.00 3816.03 11907.22 0.00 19:20:01 160.67 21.47 139.20 0.00 1335.64 22324.64 0.00 Average: 257.86 33.38 224.48 0.00 2586.25 17072.16 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13648120 15418236 592208 3.61 77680 1871920 1489116 8.54 760768 1714392 291820 19:20:01 13101072 15394592 599252 3.66 127740 2290848 1223472 7.01 899928 2048804 188116 Average: 13374596 15406414 595730 3.63 102710 2081384 1356294 7.78 830348 1881598 239968 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 0.20 0.20 0.00 0.00 0.00 0.00 19:19:02 ens3 585.60 355.82 2439.84 89.39 0.00 0.00 0.00 0.00 19:20:01 lo 1.22 1.22 0.13 0.13 0.00 0.00 0.00 0.00 19:20:01 ens3 194.46 160.80 2108.65 47.83 0.00 0.00 0.00 0.00 Average: lo 1.45 1.45 0.16 0.16 0.00 0.00 0.00 0.00 Average: ens3 391.67 259.13 2275.64 68.79 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-6082) 04/25/26 _x86_64_ (4 CPU) 19:17:53 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 23.76 0.00 2.29 2.80 0.06 71.08 19:19:02 0 33.86 0.00 3.48 3.70 0.07 58.90 19:19:02 1 28.38 0.00 2.66 1.20 0.07 67.69 19:19:02 2 20.98 0.00 1.86 5.38 0.05 71.74 19:19:02 3 11.94 0.00 1.19 0.94 0.07 85.85 19:20:01 all 27.25 0.00 2.41 1.29 0.07 68.98 19:20:01 0 37.85 0.00 3.26 0.92 0.08 57.90 19:20:01 1 22.77 0.00 2.28 0.73 0.07 74.16 19:20:01 2 16.48 0.00 1.33 2.38 0.07 79.74 19:20:01 3 31.96 0.00 2.79 1.14 0.07 64.05 Average: all 25.49 0.00 2.35 2.05 0.07 70.04 Average: 0 35.84 0.00 3.37 2.32 0.08 58.40 Average: 1 25.60 0.00 2.47 0.97 0.07 70.90 Average: 2 18.74 0.00 1.59 3.89 0.06 75.72 Average: 3 21.82 0.00 1.98 1.04 0.07 75.09