Jerky Mouse under Heavy Disk Load/Read

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framling
Posts: 3
Joined: Fri Oct 25, 2013 2:10 pm

Jerky Mouse under Heavy Disk Load/Read

Post by framling »

Hi there,

I got the i5 Intense PC barebones, added 8 GB RAM and an SSD into it. It's a lovely machine and it works well enough, except for one annoyance: Under (what it seems) heavier disk loads(reads), the mouse goes jerky.

I can simulate it by opening Crossover Office which reads the disk quite a bit at startup. If there's a youtube video playing, the sound continues to work fine, but the picture starts skipping along with the mouse.

I'm not getting anything in the logs looking like errors, except the following from Xorg:

==> Xorg.0.log <==
[ 16003.356] (II) Quirked EDID physical size to 0x0 cm
[ 16003.356] (II) intel(0): EDID vendor "SAM", prod id 1237
[ 16003.356] (II) intel(0): Using hsync ranges from config file
[ 16003.356] (II) intel(0): Using vrefresh ranges from config file
[ 16003.356] (II) intel(0): Printing DDC gathered Modelines:
[ 16003.356] (II) intel(0): Modeline "1920x1080"x0.0 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)


I've tried a few things including:
- moving the mouse wifi receiver into the other USB buses(the back doesn't work, only up front; suspect USB3, but unsure). It's not the mouse battery, or the mouse itself, it works fine on other machines.
- reloading OS, tried Linux Mind Debian Edition.
- i've tried the out of the box Mint 15 wifi drivers, as well as the .deb from the site.
- various other stuff...

I can't figure out if it's the wifi, the video or USB, or something else. I'm a bit stumped and not really sure what else to look at? Any ideas?

Have I missed anything ridiculously obvious? Make me laugh at myself :)


thanks,

framling


PS. The rest of the large logs are attached.



LinuxMint 15 (olivia)
3.8.0-25-generic (#37-Ubuntu SMP Thu Jun 6 20:47:07 UTC 2013)
1.13.3 (17 April 2013 10:43:13PM)
3.6.3 (Ubuntu 2013-03-18)
7777 MiB RAM
Samsung SSD 840 ATA on scsi0



# lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:01.1 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 5 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
00:1f.6 Signal processing controller: Intel Corporation 7 Series/C210 Series Chipset Family Thermal Management Controller (rev 04)
04:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 07)


# lsusb
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0bda:8723 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 003: ID 04d9:2221 Holtek Semiconductor, Inc. Keyboard
Bus 003 Device 004: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 003 Device 005: ID 03f0:7611 Hewlett-Packard DeskJet F2492 All-in-One
Bus 003 Device 006: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Attachments
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framling
Posts: 3
Joined: Fri Oct 25, 2013 2:10 pm

Re: Jerky Mouse under Heavy Disk Load/Read

Post by framling »

Still playing around...

- Tried changing the scheduler to noop and deadline, no effect.
- Playing 1080p vids works fine, no jerkiness
- both /dev/sda partitions are mounted with noatime,nodiratime
- I plugged both the mouse and keyboard in the USB3 ports(mouse works now), but no effect.

It seems like it's this process hogging the disk io, jbd2
# iotop -obtqqq | grep jbd2
18:06:43 511 be/3 root 0.00 B/s 7.68 K/s 0.00 % 0.57 % [jbd2/sda6-8]
18:06:53 511 be/3 root 0.00 B/s 30.78 K/s 0.00 % 0.55 % [jbd2/sda6-8]
18:06:57 511 be/3 root 0.00 B/s 61.79 K/s 0.00 % 5.62 % [jbd2/sda6-8]
18:06:58 511 be/3 root 0.00 B/s 26.78 K/s 0.00 % 3.24 % [jbd2/sda6-8]
18:07:04 511 be/3 root 0.00 B/s 7.73 K/s 0.00 % 0.58 % [jbd2/sda6-8]
18:07:06 511 be/3 root 0.00 B/s 7.68 K/s 0.00 % 0.40 % [jbd2/sda6-8]
18:07:11 511 be/3 root 0.00 B/s 3.86 K/s 0.00 % 0.53 % [jbd2/sda6-8]


it's just weeeeeird...

framling
Posts: 3
Joined: Fri Oct 25, 2013 2:10 pm

Re: Jerky Mouse under Heavy Disk Load/Read

Post by framling »

Well, Mint didn't work out for me. meh.

I've tried Fedora 19, and I've settled for Xubuntu 13.10.

It wasn't the drive, I've tried swapping it out, tuning it and all sorts; not the RAM either. Ripped out the Wifi, same problem. Tried various kernel params, nuffink helped.

The Mint version I tried had kernel 3.8.x I think, whereas the Fedora and Xubuntu are on 3.11-ish or so.

No idea what's different in these kernel versions, but lspci and Xorg seem to be returning more details about the hardware.

Still testing, but so far so good...

framling

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