Jampe Posted January 9, 2018 Share Posted January 9, 2018 On 09/01/2018 at 05:36, adrynalyne said: Maybe? This isn't my forte. As it was explained to me, it matters if it is x86 code instructions being called with sys calls. The GPU isn't x86 as far as I know. Expand This certainly is not a problem how processor executes x86 code. It is a problem here how user mode app communicates with the OS kernel and how processor handles that matter. All requests for hardware (graphics, disk, memory access) must be passed to the OS which then executes them. Apps do not write directly to GPU . They use OS to handle these calls which then calls graphics driver (at the OS kernel level) which then writes data and commands to the GPU. Therefore I think there is a great chances that these fixes affect 2D graphics as well as other data intensive tasks. Here is the security problem (as far as I understand): cpu allowed user mode app to gain access to OS kernel data, which it should never do. CPU does not handle OS and user mode isolation securely enough. Intel (and others) have used a "shortcut" to speed up things and created a security flaw which is severe. But I must say I was amazed that the effect of this fix was so huge at my Lenovo Thinkpad T440s laptop. Did not expect that much. Maybe Lenovo will provide fixes to the drivers which will help here. Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598155530 Share on other sites More sharing options...
Jampe Posted January 9, 2018 Share Posted January 9, 2018 Here are my results. FIrst test was right before update. After update I ran tests 3 times since I could not believe my eyes. Results are consistent. PC is Lenovo thinkpad t440s model 20ARS04W00 Yogurth 1 Share Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598155564 Share on other sites More sharing options...
Yogurth Posted January 9, 2018 Share Posted January 9, 2018 On 09/01/2018 at 09:25, Jampe said: Here are my results. FIrst test was right before update. After update I ran tests 3 times since I could not believe my eyes. Results are consistent. PC is Lenovo thinkpad t440s model 20ARS04W00 Expand Disk and 2D Graphics really suffer. I hope neither Microsoft nor Intel will stop optimising their patches. As they are now, I won't be updating. In fact, I will try to find updated Windows 10 ISOs with December patches and archive them if I ever need to reinstall Windows. Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598155586 Share on other sites More sharing options...
+Sledge Subscriber² Posted January 9, 2018 Subscriber² Share Posted January 9, 2018 On the Azure front we're seeing slowdowns on our legacy Azure VM's running SQL Server. We're having to scale up the VM's to cope with the slowdowns. Obviously this is all being logged and the extra costs will be argued. Not seeing the same impact on Azure SQL Servers, there is an impact but probably only 10% extra as opposed to the ~25% on the VM's. To make matters worse, MS scheduled production VM's for updates then threw the date out the window and upgraded when they felt like it. We're talking multiple end clients productions systems going down for anywhere from 30 mins to 5 hours without warning. A cluster###### if ever there was one. Read some of the comments on this Azure status. I won't say which is my real life account... https://azure.microsoft.com/en-us/blog/securing-azure-customers-from-cpu-vulnerability/ Mando 1 Share Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598155596 Share on other sites More sharing options...
Daedroth Posted January 9, 2018 Share Posted January 9, 2018 Don't forget that these patches are only part of the fix. According to the articles I've read, a BIOS update will also be required to fully patch the fix. I presume this is where a lot of the slowdowns will come from. Mando 1 Share Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598155606 Share on other sites More sharing options...
Mando Posted January 9, 2018 Share Posted January 9, 2018 On 09/01/2018 at 10:54, Daedroth said: Don't forget that these patches are only part of the fix. According to the articles I've read, a BIOS update will also be required to fully patch the fix. I presume this is where a lot of the slowdowns will come from. Expand the bulk of dell systems should get a bios fix today. Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598155610 Share on other sites More sharing options...
Mando Posted January 9, 2018 Share Posted January 9, 2018 guys the following CERT advisory has links to lots of affected platforms and products, including timescales for fixes from vendors. https://www.us-cert.gov/ncas/alerts/TA18-004A Yogurth, adrynalyne, riceBox and 1 other 4 Share Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598155622 Share on other sites More sharing options...
Mando Posted January 9, 2018 Share Posted January 9, 2018 we are currently assessing the entire global enterprise (20k endpoints, 8k+ servers) and we have reached out to NetApp, Cisco and other suppliers of enterprise kit. Were using the tack, if it has a CPU, its potentially susceptible until we are told otherwise (called due diligence). NetApp have confirmed their SAN arrays are not affected. They dont permit execution of 3rd party code. Awaiting confirmation about Cisco kit. *UPDATE** Cisco have responded. A mixed bad, some products immune but the bulk are affected. https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180104-cpusidechannel Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598156028 Share on other sites More sharing options...
Mando Posted January 9, 2018 Share Posted January 9, 2018 Asus have released the microcode fix/BIOS update for my S270 Strix H. https://www.asus.com/Motherboards/ROG-STRIX-Z270H-GAMING/HelpDesk_BIOS/ STRIX Z270H GAMING BIOS 1203 Improved DRAM compatibility. Fixed SAMSUNG M.2 device issue. Fixed SanDisk M.2 device issue. Fixed AMD SSD device issue. Fixed SteelSeries Keyboard issue. Update CPU MicroCode. Cinebench 4D BEFORE Win patch CPU Benchmark = 966CB OpenGL Bench = 140 FPS AFTER CPU Benchmark = 975CB ??? OpenGl Bench = 149.95 FPS ??? NVidia Driver update CPU Benchmark = 962CB OpenGL Bench =147.64FPS Post Bios UPD CPU Benchmark=942CB OpenGL Bench=147.36 3D Mark timespy extreme BEFORE 3998 AFTER 3997 ???? NVidia Driver Update 3971 Post Bios UPD 3955 Novabench 2713 After 2703 NVidia Driver update 2677 Post Bios UPD 2618 RealBench BEFORE Image Editing 212,486/ Time 25.0745 Encoding 93,501/time 56.9829 OpenCL 113,529/ Ksamples per sec 20877 Heavy Multitasking 110,647 Time 68.9761 System Score 132,540 RealBench AFTER Image Editing 208.830/Time 25.5135 Encoding 92,841/time 57.3881 OpenCL 113,529/ Ksamples/sec 20922 Heavy Multitasking 103,867/Time 73.4779 System Score 129,766 Post NVidia Image Editing 108,788/ Time 48.9757 Encoding 84,939/time 62.7273 OpenCL 113,529/ Ksamples per sec 20948 Heavy Multitasking 99,848 Time 76.4357 System Score 101,776 Post Bios UPD Image Editing 91,665/ Time 58.1242 Encoding 80,259/time 66.3843 OpenCL 112,996/ Ksamples per sec 20798 Heavy Multitasking 94,712 Time 80.5809 System Score 94,908 Hmm taking it with a pinch of salt, as i noticed post BIOS upd i left the OC as auto, so its at 4.37Ghz, not 4.5Ghz I benched with before...DOH ill redo it tomorrow and update. Yogurth 1 Share Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598156398 Share on other sites More sharing options...
Yogurth Posted January 10, 2018 Share Posted January 10, 2018 On 09/01/2018 at 22:47, Mando said: Asus have released the microcode fix/BIOS update for my S270 Strix H. https://www.asus.com/Motherboards/ROG-STRIX-Z270H-GAMING/HelpDesk_BIOS/ STRIX Z270H GAMING BIOS 1203 Improved DRAM compatibility. Fixed SAMSUNG M.2 device issue. Fixed SanDisk M.2 device issue. Fixed AMD SSD device issue. Fixed SteelSeries Keyboard issue. Update CPU MicroCode. Cinebench 4D BEFORE Win patch CPU Benchmark = 966CB OpenGL Bench = 140 FPS AFTER CPU Benchmark = 975CB ??? OpenGl Bench = 149.95 FPS ??? NVidia Driver update CPU Benchmark = 962CB OpenGL Bench =147.64FPS Post Bios UPD CPU Benchmark=942CB OpenGL Bench=147.36 3D Mark timespy extreme BEFORE 3998 AFTER 3997 ???? NVidia Driver Update 3971 Post Bios UPD 3955 Novabench 2713 After 2703 NVidia Driver update 2677 Post Bios UPD 2618 RealBench BEFORE Image Editing 212,486/ Time 25.0745 Encoding 93,501/time 56.9829 OpenCL 113,529/ Ksamples per sec 20877 Heavy Multitasking 110,647 Time 68.9761 System Score 132,540 RealBench AFTER Image Editing 208.830/Time 25.5135 Encoding 92,841/time 57.3881 OpenCL 113,529/ Ksamples/sec 20922 Heavy Multitasking 103,867/Time 73.4779 System Score 129,766 Post NVidia Image Editing 108,788/ Time 48.9757 Encoding 84,939/time 62.7273 OpenCL 113,529/ Ksamples per sec 20948 Heavy Multitasking 99,848 Time 76.4357 System Score 101,776 Post Bios UPD Image Editing 91,665/ Time 58.1242 Encoding 80,259/time 66.3843 OpenCL 112,996/ Ksamples per sec 20798 Heavy Multitasking 94,712 Time 80.5809 System Score 94,908 Hmm taking it with a pinch of salt, as i noticed post BIOS upd i left the OC as auto, so its at 4.37Ghz, not 4.5Ghz I benched with before...DOH ill redo it tomorrow and update. Expand Mando, is RealBench only for ASUS gaming boards bench utility? Thx for the update, btw Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598156936 Share on other sites More sharing options...
Mando Posted January 10, 2018 Share Posted January 10, 2018 On 10/01/2018 at 13:44, Yogurth said: Mando, is RealBench only for ASUS gaming boards bench utility? Thx for the update, btw Expand not 100% its via ROG aspect. give it a whirl, it may work http://dlcdnmkt.asus.com/rog/RealBench_v2.56.zip?_ga=2.161564219.660284626.1515594169-1054940240.1499777541 Yogurth 1 Share Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598156938 Share on other sites More sharing options...
+Warwagon MVC Posted January 14, 2018 Author MVC Share Posted January 14, 2018 nm Link to comment https://www.neowin.net/forum/topic/1352412-microsoft-kernel-patch-cpu-before-and-after-benchmarks-thread/page/6/#findComment-598161034 Share on other sites More sharing options...
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