Heavy slow down in graphical applications about distribution HOT 15 CLOSED

doing it didn't affect anything

from distribution.

I can confirm the frame drops no matter which desktop environment i am using, i can't find any workarounds

from distribution.

I have uploaded videos to proof it:
Before slowdown:
Youtube: https://youtu.be/oA6yGPHFGrI , Google Drive: https://drive.google.com/open?id=1jkQCTjTWcI6q8jb4X5UO_qqO1VT-N_BJ
After slowdown:
Youtube: https://youtu.be/9QIlXvdvlIc , Google Drive: https://drive.google.com/open?id=1tCWHQysW8tBzqfu5DIDpksWLHJ7dDgry

Note: after slowdown, cpu usage for recording increased too but cpu usage never hit %60 or more in both situations

from distribution.

output of: cat /proc/cpuinfo

utku@clr-449e9b2a44f8458bb4885604dc172a1c ~ $ cat /proc/cpuinfo
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 37
model name	: Intel(R) Core(TM) i3 CPU       M 380  @ 2.53GHz
stepping	: 5
microcode	: 0x4
cpu MHz		: 1294.824
cache size	: 3072 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 popcnt lahf_lm retpoline tpr_shadow vnmi flexpriority ept vpid dtherm arat
bugs		: cpu_meltdown spectre_v1 spectre_v2
bogomips	: 5066.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 37
model name	: Intel(R) Core(TM) i3 CPU       M 380  @ 2.53GHz
stepping	: 5
microcode	: 0x4
cpu MHz		: 1470.358
cache size	: 3072 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 popcnt lahf_lm retpoline tpr_shadow vnmi flexpriority ept vpid dtherm arat
bugs		: cpu_meltdown spectre_v1 spectre_v2
bogomips	: 5066.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 37
model name	: Intel(R) Core(TM) i3 CPU       M 380  @ 2.53GHz
stepping	: 5
microcode	: 0x4
cpu MHz		: 1807.030
cache size	: 3072 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 2
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 popcnt lahf_lm retpoline tpr_shadow vnmi flexpriority ept vpid dtherm arat
bugs		: cpu_meltdown spectre_v1 spectre_v2
bogomips	: 5066.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 37
model name	: Intel(R) Core(TM) i3 CPU       M 380  @ 2.53GHz
stepping	: 5
microcode	: 0x4
cpu MHz		: 1679.491
cache size	: 3072 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 2
apicid		: 5
initial apicid	: 5
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 popcnt lahf_lm retpoline tpr_shadow vnmi flexpriority ept vpid dtherm arat
bugs		: cpu_meltdown spectre_v1 spectre_v2
bogomips	: 5066.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

I gues bugs : cpu_meltdown spectre_v1 spectre_v2 says that meltdown and spectre patches enabled, but it musn't effecting graphical rendering i gues.
Output of dmesg:
dmesg.txt

from distribution.

the nopti options appears to be the correct one, according to the sources. Try passing it as a boot option directly, and verifying that /proc/cmdline shows it is properly passed after booting.

from distribution.

utku@clr-449e9b2a44f8458bb4885604dc172a1c ~ $ cat /proc/cmdline
root=PARTUUID=4b6713b2-0264-4009-b7f0-2914031f51f8 quiet modprobe.blacklist=ccipciedrv,aalbus,aalrms,aalrmc console=tty0 console=ttyS0,115200n8 init=/usr/lib/systemd/systemd-bootchart initcall_debug tsc=reliable no_timer_check noreplace-smp kvm-intel.nested=1 rootfstype=ext4,btrfs,xfs intel_iommu=igfx_off cryptomgr.notests rcupdate.rcu_expedited=1 i915.fastboot=1 rcu_nocbs=0-64 rw pti=off

pti=off

seems to me i havve passed pti=off option successfully but i will try nopti too

from distribution.

I have changed pti=off to nopti via these commands:

utku@clr-449e9b2a44f8458bb4885604dc172a1c ~ $ ls /etc/kernel/cmdline.d
my.conf
utku@clr-449e9b2a44f8458bb4885604dc172a1c ~ $ sudo su -c 'echo nopti > /etc/kernel/cmdline.d/my.conf; chmod 777 /etc/kernel/cmdline.d/my.conf'
Password: 

i will reboot and see the results
UPDATE:
nopti didn't passed and i forget to run sudo clr-boot-manager update, i will rebbot and see the results

from distribution.

utku@clr-449e9b2a44f8458bb4885604dc172a1c ~ $ cat /proc/cmdline
root=PARTUUID=4b6713b2-0264-4009-b7f0-2914031f51f8 quiet modprobe.blacklist=ccipciedrv,aalbus,aalrms,aalrmc console=tty0 console=ttyS0,115200n8 init=/usr/lib/systemd/systemd-bootchart initcall_debug tsc=reliable no_timer_check noreplace-smp kvm-intel.nested=1 rootfstype=ext4,btrfs,xfs intel_iommu=igfx_off cryptomgr.notests rcupdate.rcu_expedited=1 i915.fastboot=1 rcu_nocbs=0-64 rw nopti

i did passed nopti successfully and rebooted but frame rates were same , still 20fps lower than before

from distribution.

I have uploaded https://drive.google.com/open?id=1jkQCTjTWcI6q8jb4X5UO_qqO1VT-N_BJ at 3 January 2018, so that eliminates the updates before 3 January 2018

from distribution.

from distribution.

after adding that file you need to run 'clr-boot-manager update' to have it update the bootloader

i did runned the clr-boot-manager update

UPDATE:
nopti didn't passed and i forget to run sudo clr-boot-manager update, i will rebbot and see the results

from distribution.

utku@clr-449e9b2a44f8458bb4885604dc172a1c ~ $ cat /proc/cmdline
root=PARTUUID=4b6713b2-0264-4009-b7f0-2914031f51f8 quiet modprobe.blacklist=ccipciedrv,aalbus,aalrms,aalrmc console=tty0 console=ttyS0,115200n8 init=/usr/lib/systemd/systemd-bootchart initcall_debug tsc=reliable no_timer_check noreplace-smp kvm-intel.nested=1 rootfstype=ext4,btrfs,xfs intel_iommu=igfx_off cryptomgr.notests rcupdate.rcu_expedited=1 i915.fastboot=1 rcu_nocbs=0-64 rw nopti noibrs noibpb
utku@clr-449e9b2a44f8458bb4885604dc172a1c ~ $ sudo '/home/utku/Desktop/spectre-meltdown-checker.sh'
Password: 
Spectre and Meltdown mitigation detection tool v0.23

Checking for vulnerabilities against live running kernel Linux 4.14.13-509.native #1 SMP Sat Jan 13 15:03:45 UTC 2018 x86_64

CVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1'
* Checking count of LFENCE opcodes in kernel:  UNKNOWN  (couldn't find your kernel image in /boot, if you used netboot, this is normal)
> STATUS:  UNKNOWN  (impossible to check )

CVE-2017-5715 [branch target injection] aka 'Spectre Variant 2'
* Mitigation 1
*   Hardware (CPU microcode) support for mitigation:  NO 
*   Kernel support for IBRS:  NO 
*   IBRS enabled for Kernel space:  NO 
*   IBRS enabled for User space:  NO 
* Mitigation 2
*   Kernel compiled with retpoline option:  UNKNOWN  (couldn't read your kernel configuration)
*   Kernel compiled with a retpoline-aware compiler:  NO 
> STATUS:  VULNERABLE  (IBRS hardware + kernel support OR kernel with retpoline are needed to mitigate the vulnerability)

CVE-2017-5754 [rogue data cache load] aka 'Meltdown' aka 'Variant 3'
* Kernel supports Page Table Isolation (PTI):  NO 
* PTI enabled and active:  NO 
> STATUS:  VULNERABLE  (PTI is needed to mitigate the vulnerability)

A false sense of security is worse than no security at all, see --disclaimer

I have passed nopti noibrs noibpb this time but i still having 20fps frame drop. meltdown and spectre patches musn't drop graphical performance so much

from distribution.

If you're going to disable security precautions in your kernel, you are at risk of exposing yourself to the vulnerabilities that they protect against. We strongly advise against doing doing that.

from distribution.

Since your original issue was about passing a kernel commandline option, which seems resolved, I'm tempted to close this issue.

from distribution.

I have opened a new issue about frame drops in graphical applications: #9

from distribution.