4 ms·
Patching POWER for Spectre/Meltdown was a pain but we are done with it. You have to apply patches to the LPAR/OS, VIOS and firmware. IBM has acknowledged that
by newman314 9y ago
Patching POWER for Spectre/Meltdown was a pain but we are done with it.
You have to apply patches to the LPAR/OS, VIOS and firmware. IBM has acknowledged that there will be a performance hit but have not provided any quantified numbers that I have seen so far.
- hindsightbias 9y agohttps://ibm.biz/BdZjPy https://ibm.biz/BdZjPy "All POWER8 and POWER9 results in this table reflect performance with firmware and Operating System updates to mitigate Common Vulnerabilities and Exposures issue numbers ... known as Spectre and Meltdown"
- newman314 9y agoThanks. I also just found the rPerf and CPW consolidated spreadsheet from IBM (including pre and post Spectre/Meltdown numbers). https://www.ibm.com/developerworks/community/files/basic/anonymous/api/library/91037d4b-518a-4662-8832-0049a2d2563c/document/4c46604b-c783-4843-86d7-c34a8dbe0bc0/media https://www.ibm.com/developerworks/community/files/basic/ano...
- reirob 9y agoHow did you verify if the patched system is not affected anymore? I'm really curious what means the users have to verify the effectiveness of such patches.