RAM Cache Disappears

Hello,
I've been having an issue where the RAM cache disappears as soon as the RAM playback is stopped. Just to be clear, I'm referring to the green indicator along the top of the timeline so you know which frames are cached. This happens on various computers in our facility. It seems to be more common when multiprocessing is enabled. It also happens if you tell After Effects to RAM preview and then switch to another application. After Effects will complete rendering the RAM preview in the background, the icon will bounce in the dock to let you know it's ready, but nothing is cached when you switch back to After Effects. This is something that I've noticed for a couple of years over multiple versions of After Effects both at home and at the office. It seems to happen fairly consistently with specific comps which makes me wonder if it's related to any of the effects that have been applied in that comp. Any information regarding this behavior would be very much appreciated. Thanks!
Dave Jacobson
After Effects CC 12.0
Mac Pro 5,1
OS X 10.8.4
2 x 2.66 GHz 6-Core Intel Xeon
48GB RAM
GTX 680

We have seen this ocassionally happen when Render Mutliple Frames Simultaneously multiprocessing is on. If you have a specific case or cases where this is happening, please submit bugs.

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which is plenty for me even though i use alot. There's an issue however, and that is that many heavy applications such as games like Garrys Mod or Elder Scrolls Online under Wine crashes when the RAM cache exceeds those 6gb. It's supposed to go over to SWAP, but heavy applications simply just crash instead which is very annoying. I do not know why it just crashes, since i always have at least 1500mb of free swap available, and since it's just for cache and not reserved memory that should be fine. Sometimes an excessive amount of cache is used, and i'm not sure what is using up all of it which makes me have to reboot my computer to be able to play games without crashing which is very annoying.
a ps aux of one of those times where excessive cache is used for unknown reason
VSZ RSS TTY STAT START TIME COMMAND
0.0 0.0 181764 3096 ? Ss Apr06 0:05 /sbin/init
0 0 ? S Apr06 0:00 [kthreadd]
0 0 ? S Apr06 0:15 [ksoftirqd/0]
0 0 ? S< Apr06 0:00 [kworker/0:0H]
0 0 ? S Apr06 0:52 [rcu_preempt]
0 0 ? S Apr06 0:00 [rcu_sched]
0 0 ? S Apr06 0:00 [rcu_bh]
0 0 ? S Apr06 0:00 [migration/0]
0 0 ? S Apr06 0:00 [watchdog/0]
0 0 ? S Apr06 0:00 [watchdog/1]
0 0 ? S Apr06 0:00 [migration/1]
0 0 ? S Apr06 0:16 [ksoftirqd/1]
0 0 ? S< Apr06 0:00 [kworker/1:0H]
0 0 ? S Apr06 0:00 [watchdog/2]
0 0 ? S Apr06 0:00 [migration/2]
0 0 ? S Apr06 0:15 [ksoftirqd/2]
0 0 ? S< Apr06 0:00 [kworker/2:0H]
0 0 ? S Apr06 0:00 [watchdog/3]
0 0 ? S Apr06 0:00 [migration/3]
0 0 ? S Apr06 0:45 [ksoftirqd/3]
0 0 ? S< Apr06 0:00 [kworker/3:0H]
0 0 ? S< Apr06 0:00 [khelper]
0 0 ? S Apr06 0:00 [kdevtmpfs]
0 0 ? S< Apr06 0:00 [netns]
0 0 ? S< Apr06 0:00 [perf]
0 0 ? S Apr06 0:00 [khungtaskd]
0 0 ? S< Apr06 0:00 [writeback]
0 0 ? SN Apr06 0:00 [ksmd]
0 0 ? SN Apr06 0:17 [khugepaged]
0 0 ? S< Apr06 0:00 [crypto]
0 0 ? S< Apr06 0:00 [kintegrityd]
0 0 ? S< Apr06 0:00 [bioset]
0 0 ? S< Apr06 0:00 [kblockd]
0 0 ? S< Apr06 0:00 [devfreq_wq]
0 0 ? S Apr06 1:07 [kswapd0]
0 0 ? S Apr06 0:00 [fsnotify_mark]
0 0 ? S< Apr06 0:00 [kthrotld]
0 0 ? S< Apr06 0:00 [ipv6_addrconf]
0 0 ? S< Apr06 0:00 [deferwq]
0 0 ? S< Apr06 0:00 [firewire]
0 0 ? S< Apr06 0:00 [ata_sff]
0 0 ? S< Apr06 0:00 [firewire_ohci]
0 0 ? S Apr06 0:00 [scsi_eh_0]
0 0 ? S< Apr06 0:00 [scsi_tmf_0]
0 0 ? S Apr06 0:00 [scsi_eh_1]
0 0 ? S< Apr06 0:00 [scsi_tmf_1]
0 0 ? S Apr06 0:00 [scsi_eh_2]
0 0 ? S< Apr06 0:00 [scsi_tmf_2]
0 0 ? S Apr06 0:00 [scsi_eh_3]
0 0 ? S< Apr06 0:00 [scsi_tmf_3]
0 0 ? S Apr06 0:00 [scsi_eh_4]
0 0 ? S< Apr06 0:00 [scsi_tmf_4]
0 0 ? S Apr06 0:00 [scsi_eh_5]
0 0 ? S< Apr06 0:00 [scsi_tmf_5]
0 0 ? S< Apr06 0:00 [kworker/0:1H]
0 0 ? S< Apr06 0:00 [kworker/2:1H]
0 0 ? S< Apr06 0:13 [kworker/3:1H]
0 0 ? S< Apr06 0:00 [kworker/1:1H]
0 0 ? S Apr06 0:01 [jbd2/sdc2-8]
0 0 ? S< Apr06 0:00 [ext4-rsv-conver]
0.0 0.1 76704 10072 ? Ss Apr06 0:03 /usr/lib/systemd/systemd-journald
0 0 ? S< Apr06 0:00 [iprt]
8 ? Ss Apr06 0:00 /usr/lib/systemd/systemd-udevd
0 0 ? S< Apr06 0:00 [cfg80211]
0 0 ? S< Apr06 0:00 [hd-audio1]
0 0 ? S< Apr06 0:00 [hd-audio0]
0 0 ? S< Apr06 0:00 [edac-poller]
0 0 ? S< Apr06 0:00 [md]
0 0 ? S< Apr06 0:00 [kvm-irqfd-clean]
0 0 ? S< Apr06 0:00 [bioset]
0 0 ? S Apr06 0:00 [md0_raid1]
0 0 ? S Apr06 0:00 [jbd2/sdd1-8]
0 0 ? S< Apr06 0:00 [ext4-rsv-conver]
0 0 ? S Apr06 0:07 [jbd2/sde2-8]
0 0 ? S< Apr06 0:00 [ext4-rsv-conver]
0 0 ? S Apr06 0:00 [jbd2/md0p1-8]
0 0 ? S< Apr06 0:00 [ext4-rsv-conver]
0.0 0.0 31328 1832 ? Ss Apr06 0:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
0.0 0.0 15196 1096 ? Ss Apr06 0:00 /usr/lib/systemd/systemd-logind
4 ? Ss Apr06 0:00 login -- johan
0 0 ? S 22:54 0:00 [kworker/2:0]
4456 1236 ? Ss Apr06 0:00 /usr/bin/dhcpcd -q -b
4456 1296 ? Ss Apr06 0:00 /usr/bin/dhcpcd -q -w enp3s0
612 ? Ss Apr06 0:00 /usr/bin/sshd -D
8 ? Ss Apr06 0:00 /usr/lib/systemd/systemd --user
24 ? S Apr06 0:00 (sd-pam)
4 tty1 Ss Apr06 0:00 -zsh
8 tty1 S+ Apr06 0:00 /bin/sh /usr/bin/startx
0 tty1 S+ Apr06 0:00 xinit /home/johan/.xinitrc -- /etc/X11/xinit/xserverrc :0 vt1 -auth /tmp/serverauth.kPf8g7jD1E
2.4 1.5 257684 97220 tty1 S< Apr06 35:21 /usr/lib/xorg-server/Xorg -nolisten tcp :0 vt1 -auth /tmp/serverauth.kPf8g7jD1E
0.0 0.0 24104 1012 tty1 S Apr06 0:07 bspwm -c /home/johan/.bspwm/bspwmrc
0.0 0.0 176520 3584 tty1 S Apr06 0:00 trayer --edge top --align right --transparent true --widthtype pixel --heighttype pixel --width 68 --height 20 --margin 115 --tint 0x000000
0.5 0.0 96912 1680 tty1 S Apr06 7:56 compton
904 tty1 S Apr06 0:02 sxhkd -c /home/johan/.bspwm/sxhkdrc
16 tty1 S Apr06 0:00 bspc control --subscribe
20 tty1 S Apr06 0:00 cat /tmp/panelfifo
32 tty1 S Apr06 0:00 tee -a /tmp/panelfifo_center /tmp/minipanelfifo_left /tmp/minipanelfifo_right
0 tty1 S Apr06 0:00 cat /tmp/panelfifo_center
0.0 0.0 13676 1552 tty1 S Apr06 0:10 /bin/sh /home/johan/.bspwm/paneltext 1520 2
0.0 0.0 52732 1316 tty1 S Apr06 0:08 dzen2 -ta l -o 60 -fn Liberation Mono -fg #FFFFFF -x 1480 -y 0 -w 1520 -h 20
0 tty1 S Apr06 0:00 cat /tmp/minipanelfifo_left
0.0 0.0 13676 1528 tty1 S Apr06 0:10 /bin/sh /home/johan/.bspwm/paneltext 1080 1
0.0 0.0 52728 1640 tty1 S Apr06 0:06 dzen2 -ta l -o 60 -fn Liberation Mono -fg #FFFFFF -x 100 -y 0 -w 1080 -h 20
0 tty1 S Apr06 0:00 cat /tmp/minipanelfifo_right
0.0 0.0 13676 1544 tty1 S Apr06 0:10 /bin/sh /home/johan/.bspwm/paneltext 1080 3
180 tty1 S Apr06 0:06 dzen2 -ta l -o 60 -fn Liberation Mono -fg #FFFFFF -x 3300 -y 0 -w 1080 -h 20
32 tty1 S Apr06 0:00 /bin/bash /home/johan/.bspwm/panel
0.0 0.0 13560 1336 tty1 S Apr06 0:00 /bin/bash /home/johan/.bspwm/panel
0 0 ? S 22:58 0:00 [kworker/3:1]
0.0 0.0 176052 3060 ? Sl 22:21 0:00 /usr/lib/dconf/dconf-service
0 tty1 S Apr06 0:00 /usr/bin/dbus-launch --autolaunch 95fb1e3dc8cd49919b01a29b2760ba78 --binary-syntax --close-stderr
0.0 0.0 31148 1632 ? Ss Apr06 0:00 /usr/bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session
0.0 0.0 92548 5612 ? Ss 23:06 0:00 urxvt
0.0 0.0 32304 2892 pts/1 Ss 23:06 0:00 zsh
0.4 0.0 14840 3044 pts/1 S+ 23:06 0:06 htop
0 ? Sl Apr06 0:00 /usr/lib/at-spi2-core/at-spi-bus-launcher
0.0 0.0 31020 1456 ? S Apr06 0:02 /usr/bin/dbus-daemon --config-file=/etc/at-spi2/accessibility.conf --nofork --print-address 3
752 ? Sl Apr06 0:07 /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
1.7 0.1 496912 7392 ? S<l Apr06 25:05 /usr/bin/pulseaudio --start --log-target=syslog
24 ? SNsl Apr06 0:00 /usr/lib/rtkit/rtkit-daemon
260 ? Ssl Apr06 0:01 /usr/lib/polkit-1/polkitd --no-debug
0 ? S Apr06 0:00 /usr/lib/pulse/gconf-helper
164 ? S Apr06 0:00 /usr/lib/GConf/gconfd-2
0 0 ? S 23:12 0:01 [kworker/u8:2]
0 0 ? S 23:16 0:00 [kworker/3:2]
0 0 ? S 23:19 0:00 [kworker/2:1]
0 0 ? S 23:20 0:00 [kworker/u8:3]
0.0 0.2 92548 13556 ? Ss 23:20 0:00 urxvt
0.0 0.0 32304 4896 pts/2 Ss 23:20 0:00 zsh
0.3 0.0 14808 3988 pts/2 S+ 23:20 0:01 htop
0 0 ? S 23:20 0:00 [kworker/1:1]
0 0 ? S 22:39 0:00 [kworker/1:0]
0 0 ? S 23:24 0:00 [kworker/2:2]
0.0 0.1 92548 11756 ? Ss 23:25 0:00 urxvt
0.0 0.0 32304 4844 pts/0 Ss+ 23:25 0:00 zsh
0 0 ? S 16:21 0:00 [kworker/0:2]
0 0 ? S 23:26 0:00 [kworker/3:0]
0 0 ? S 23:26 0:00 [kworker/1:2]
0.0 0.1 99316 11656 ? Ss 23:27 0:00 urxvt
0.0 0.0 32304 4956 pts/3 Ss 23:27 0:00 zsh
8724 1860 ? Ss 23:27 0:00 /usr/lib/systemd/systemd-hostnamed
5776 672 tty1 S 23:27 0:00 sleep 60
0.0 0.0 32932 2924 pts/3 R+ 23:28 0:00 ps aux
0.0 0.0 401196 2200 ? Ssl 12:37 0:00 /usr/lib/udisks2/udisksd --no-debug
0 0 ? S 16:58 0:00 [kworker/0:1]
0 0 ? S 22:03 0:03 [kworker/u8:1]
8 ? S 14:48 0:00 /bin/zsh
5.8 1.1 546220 68188 ? S<l 14:48 30:40 /usr/lib32/skype/skype
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Thanks for your response.
A Ajar

2GB of video ram is more than enough for the Hardware MPE engine and 1080 media with effects. Essentially the greater the ram space on the video card the greater ram caching available for the Cuda acceleration to buffer data ready for GPU processing. The Application memory management ie caching profiles though effect this based on each codec and resolution ie data per frame. However along with this you have to have enough system ram to create the buffers used to cache the data down to the GPU ram since that data shadows down for GPU processing and then back again for final encoding. This means that not configuring enough system ram will limit the amount of GPU ram used. Hence why you want atleast 16GB of ram for HD and the hardware MPE engine. 3GB+ ram spaces on video cards are for 2K to 4K + frame sizes ie R3D and Raw/CinemaDng. This is because the data per frame multiplies significantly when at 4K resolution. This require far greater ram space which is why you look for the 3GB+ ram space cards for those workflows. The Effect data will also increase because there is far mroe resolution data to alter. This is on top of the drawing out data which is what you see on the screen. That is when the differences for the cards show.
Eric
ADK

OBIEE 10g: Presentation Cache in Second Instance of Presentation Server

Hi everyone,
I've been having an issue with my presentation cache disappearing every couple of minutes.
I'm working with OBIEE 10.1.3.4, on Oracle Application Server on a Linux RHEL 5.4 32bit. I've spun up a second instance of the presentation service using the commands from RNM1978's blog here (http://rnm1978.wordpress.com/2009/08/25/multiple-rpds-on-one-server-part-2-presentation-services/). The reason why I have a second instance of the presentation service is for mobile reporting purposes. We have lots of executives using iPhones and the Oracle Business Intelligence Indicators application. The second instance defaults all charts to be PNGs, it also uses a separate, clean catalog, so that the executives don't get lost in all of the out of the box BI Applications content that is in our main catalog.
Everything is setup and working properly, both presentation services are accessible and use the same RPD but different catalogs. The only thing that isn't working is the presentation service cache. A lot of these reports are QTD or YTD so it takes a few minutes to run some. We were hoping to use iBots to create BI Server cache at the beginning of the day. That seemed to help a bit but it seems to clear after a few minutes.
Additionally, before we went to do demos to end users, we would run all the reports from a demo iPhone. Go to do the demo and within five minutes, the presentation cache would have already cleared. I confirmed the same by looking in the Session Manager of the second presentation service.
Does anyone know why this would be happening? I have cache turned on in the bi server and I also have the following settings in my instanceconfigMobile.XML:
<Cache>
<Query>
<CacheMaxEntries>1000</CacheMaxEntries>
<CacheMaxExpireMinutes>720</CacheMaxExpireMinutes>
<CacheMinExpireMinutes>720</CacheMinExpireMinutes>
<CacheMinUserExpireMinutes>720</CacheMinUserExpireMinutes>
</Query>
</Cache>
Are there other settings I need to investigate?
Is this just additional commands I need to run when launching the additional presentation service? Here's the command I'm using:
. ./common.sh
. ./sa-init.sh
sawserver -c /home/oracle/OracleBIData/web/config/instanceconfigMobile.xml >> /home/oracle/OracleBIData/web/log/sawserverMobile.out.log 2>&1 &
Thanks!
-=Joe

Hi Joe
I can't say I've tried Robin's technique to run two presentation servers but from my basic understanding of it, both versions will share the same cache as defined in a single nqsconfig.ini file. Maybe these 2 are conflicting somehow?
I see that a separate instanceconfig.xml is used for each presentation server. I know there are a bunch of advanced, largely undocumented, cache properties you can set in there. I can send you a document listing the various properties if you want to play with it - contact me via my website.
Paul
http://total-bi.com

Setting in BIOS to change RAM speed in an ATC-605?

Is there a way to enable or see the settings in the BIOS to alter RAM speed and timings? I know a lot of things are locked away compared to a normal built system, but is there a way to do this? Looking to see if I can enable XMP and up my RAM speed to its appropriate speeds.

Are you talking about the stock memory in your computer? Or you've added some different memory? I think the max it can do is the JEDEC standard for the motherboard which is DDR3-1600 CL11 (I think). Even if the BIOS did support XMP. I don't think it would do much good since you can't overclock the CPU. Neither the locked Haswell CPUs or H81E chipset support overclocking on the TC-605s. So wouldn't the performance gain would be tiny without the ability to overclock the CPU......? I was actually thinking about buying some 1600/1866 just for curiousity sake, but I get the feeling it would bump down to 1600 due to that JEDEC standard which is out of Acer's control. I have the i5 4440 which says it only supports 1600 max. http://ark.intel.com/products/75038/Intel-Core-i5-4440-Processor-6M-Cache-up-to-3_30-GHz I don't know though, I'm not an overclocker....so maybe somebody can give you a better answer. Anyway, the TC-605 is more of a mainstream desktop. Don't get me wrong, you can max it out to 16GB ram and...... At this point, I've added to one of my tc-605s...a SSD with the ram cache enabled, and added some additional ram. It's pretty quick. Now I just have to pull the trigger on that gtx 750ti-sc (if it will fit in the case) Edit: If you're using CPU-Z or Speccy, and you're using the ram that came with the tc-605, it should give a frequency of around 800 Mhz. Which would be 1600 since it's DDR=DoubleDataRate. I think when I checked it said something like 798.1 Mhz...which is close enough to 800 Mhz.

CS4, XP SP3 (32 bit) and over 4 gb ram

I have an XP SP3 system with quad power and 4gb ram at present.
I found this in Memory allocation and usage (Photoshop CS2)
If you have more than 4 GB (to 6 GB (Windows) or 8 GB (Mac OS)), the RAM above 4 GB is used by the operating system as a cache for the Photoshop scratch disk data. Data that previously was written directly to the hard disk by Photoshop, is now cached in this high RAM before being written to the hard disk by the operating system. If you are working with files large enough to take advantage of these extra 2 GB of RAM, the RAM cache can speed performance of Photoshop.
This seems to refer to 64 bit but I was told it applied to 32 bit and 8gb. Is any of this true for 32 bit XP?
Thanks,
RON C

On Fri, 24 Oct 2008 12:06:53 -0700, [email protected] wrote:
> If you have more than 4 GB (to 6 GB (Windows) or 8 GB (Mac OS)), the RAM above
> 4 GB is used by the operating system as a cache ...
>
> Is any of this true for 32 bit XP?
This is talking about a 32 bit app running on a 64 bit operating system.
The gist of it is that a 32 bit app, benefits indirectly from >4GB of
memory, only if the OS is 64 bit. Likewise, on 32 bit systems, there is a
similar benefit to having 4GB of RAM, even though Photoshop cannot see >
2GB.
Re /3GB: normally the OS splits the 4GB address space 50/50 with
applications. The /3GB switch allows you to shift the balance. Photoshop
can handle a larger image, but, as Jeff says, the performance suffers.
It's useful though. If you have a large image that you must process by
hook or by crook, the /3GB switch allows you to do so without running out
of RAM. I do this occasionally when I get a very large image from a
customer - generally it's go have a cup of coffee, or lunch, while the
large image is being loaded and resized. When I get back, the image is
manageable and I can reboot without the /3GB switch. I've done this on a
system with only 1 GB of ram, processing images between 50 and 100
megapixels.
FYI - the boot.ini that I use is:
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP
Professional" /noexecute=optin /fastdetect
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP
Professional 3GB" /fastdetect /3GB /USERVA=2944 /NoExecute=OptIn
Warning: It's easy to brick your system when modifying boot.ini. Be
absolutely sure that you can boot from another drive and restore your
original file.
Images are getting larger. 32 bits is a pain. Viva la 64 bits!

RAM Cache Disappears

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