The last run the numbers are lower

[joanhey]

The run before:

The last run:

[joanhey]

Perhaps it's another security mitigation. But it's good to know from where is the problem.

PD: normally appear when we restart the servers.

[Xudong-Huang]

also some numbers are not correct!

[volyrique]

The Linux kernel was updated from version 6.5.0-41-generic to 6.8.0-49-generic.

[joanhey]

Perhaps will be good to run lscpu after each new restart.

So we can check for new Vulnerabilities:

Vulnerabilities:
  Itlb multihit:         Not affected
  L1tf:                  Not affected
  Mds:                   Not affected
  Meltdown:              Not affected
  Mmio stale data:       Mitigation; Clear CPU buffers; SMT vulnerable
  Retbleed:              Not affected
  Spec store bypass:     Mitigation; Speculative Store Bypass disabled via prctl and seccomp
  Spectre v1:            Mitigation; usercopy/swapgs barriers and __user pointer sanitization
  Spectre v2:            Mitigation; Enhanced IBRS, IBPB conditional, RSB filling, PBRSB-eIBRS SW sequence
  Srbds:                 Not affected
  Tsx async abort:       Not affected

PD: some platforms loss more than 25% (-1 million requests). We had the same problem sometime ago with the vulnerabilities mitigations.

[joanhey]

After this run with lower numbers, in each new run we have a degradation in performance.

Examples are the first fortune framework (may-minihttp) and plain nginx plaintext.

The diff in numbers:

Framework	Run	Run (server restart)	Runs after
may-minithttp (fortunes)	1,440,495	1,343,512	1,331,796	1,317,465
nginx (plaintext)	5,828,101	4,930,020	4,886,378	4,770,160

With graphs:

may-minitthp	nginx

Perhaps it's temporal, but it'll be good to check the next runs!!