Aug. 19, 2020
10:21 a.m.
On 19/08/2020 10:16, Muni Sekhar wrote:
On Tue, Aug 18, 2020 at 11:45 PM peter enderborg <peter.enderborg@sony.com> wrote: [...]
On the 4.4 kernel you dont have
+CONFIG_RETPOLINE=y +CONFIG_INTEL_RDT=y Thanks! That is helpful. Yes, I see 4.4 kernel don't have the above two config options. What analysis can be done to narrow down the root cause? Any example of reference could be helpful to understand.
I haven't checked the date of the older kernel but Spectre+ Meltdown mitigation costs a lot (20%-30% speed IIRC, out of the top of my head). MfG, Bernd -- There is no cloud, just other people computers. -- https://static.fsf.org/nosvn/stickers/thereisnocloud.svg