[Firebird-devel] Meltdown and Spectre

[Omacht A. <ao...@mv...>]

Hi!

Just for the shake of information.

Our test system running on Debian 9.3.
processor       : 7
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Xeon(R) CPU           E5420  @ 2.50GHz
stepping        : 6
microcode       : 0x60b
cpu MHz         : 2500.117
cache size      : 6144 KB
...

We've done some test runs with the 'old' kernel (linux-image-4.9.0-4-amd64) and the 'new' one (linux-image-4.9.0-5-amd64).

No. of tests: 6014
No. of result checks: 253555   (checking column values, stored procedure results, etc.)

Average running time on 4.9.0-4: 466 secs (7 mins 46 secs)
Average running time on 4.9.0-5: 635 secs (10 mins 35 secs)

The database file and the tmp directory located on ramdisk.

András



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