---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-12832 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 8.8G 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 68M 68M 0 100% /snap/lxd/22753 /dev/loop1 44M 44M 0 100% /snap/snapd/15177 /dev/loop2 62M 62M 0 100% /snap/core20/1405 /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 12723 1 2642 15031 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:77:f5:15 brd ff:ff:ff:ff:ff:ff inet 10.30.106.23/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86245sec preferred_lft 86245sec inet6 fe80::f816:3eff:fe77:f515/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-12832) 08/15/26 _x86_64_ (4 CPU) 19:17:51 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:01 342.30 39.52 302.78 0.00 3598.00 11714.10 0.00 19:20:01 175.72 28.38 147.34 0.00 1584.54 23769.79 0.00 Average: 259.02 33.95 225.07 0.00 2591.35 17741.44 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:01 13679540 15391316 614428 3.75 75396 1827164 1245852 7.14 785764 1661760 250532 19:20:01 13034608 15396280 589788 3.60 127656 2362340 1227164 7.04 887076 2123324 204812 Average: 13357074 15393798 602108 3.67 101526 2094752 1236508 7.09 836420 1892542 227672 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:01 lo 1.27 1.27 0.15 0.15 0.00 0.00 0.00 0.00 19:19:01 ens3 358.01 242.57 2023.99 76.03 0.00 0.00 0.00 0.00 19:20:01 lo 1.13 1.13 0.12 0.12 0.00 0.00 0.00 0.00 19:20:01 ens3 224.10 164.32 2635.60 32.66 0.00 0.00 0.00 0.00 Average: lo 1.20 1.20 0.14 0.14 0.00 0.00 0.00 0.00 Average: ens3 291.06 203.45 2329.77 54.35 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-12832) 08/15/26 _x86_64_ (4 CPU) 19:17:51 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:01 all 22.21 0.00 2.29 2.60 0.06 72.84 19:19:01 0 24.73 0.00 2.65 1.78 0.07 70.76 19:19:01 1 30.84 0.00 2.70 2.52 0.07 63.87 19:19:01 2 25.77 0.00 2.04 0.99 0.07 71.14 19:19:01 3 7.45 0.00 1.77 5.12 0.05 85.60 19:20:01 all 27.70 0.00 2.54 1.32 0.08 68.36 19:20:01 0 39.46 0.00 2.55 0.35 0.08 57.56 19:20:01 1 34.67 0.00 3.19 0.95 0.07 61.12 19:20:01 2 21.63 0.00 2.60 1.56 0.10 74.11 19:20:01 3 14.94 0.00 1.81 2.43 0.07 80.75 Average: all 24.95 0.00 2.42 1.96 0.07 70.60 Average: 0 32.10 0.00 2.60 1.07 0.08 64.16 Average: 1 32.75 0.00 2.95 1.74 0.07 62.50 Average: 2 23.70 0.00 2.32 1.27 0.08 72.62 Average: 3 11.19 0.00 1.79 3.78 0.06 83.18