Pegged CPU using Scripter MIDI FX

I've been using MainStage 3.0.4 with the Scripter MidiFX plugin to use javascript to build custom sequencing/arpeggiators. Unforuntately, I have found using NeedsTimingInfo = true; to cause performance issues that cause occasional blips in the audio output from the CPU being pegged... even with the highest output buffers.
I moved from using GetTimingInfo() to writing my own version using new Date().getTime() in javascript, and that helped A LOT, but I was still getting occasional CPU spiked that affected the output. Even the Apple example javascript files have this problem. Strangely, moving from my Core i7 8 core MacBook Pro to a Core 2 Duo MacMini was better for the CPU, and the problem seems to be resolved by switching to a single CPU, but I'm expecting it to come back at any moment.
Basically I'm doing stuff like having a bass line I can turn on with a fader that goes along with my keyboard parts, or some custom arpeggiation beyond what I can do with Apple's plugin.
Has anyone else experienced this issue or have any suggestions? Moving to a single core actually seems to be doing okay tonight, but it seems ridiculous to cut and paste these class with 50 lines of code to replace built in functionality in every one of my scripts.
I'll gladly post the javascript if others have experienced this and there is no resolution on the current version of MainStage.

Hi Smitting!!
Please , i kindly ask you for helping me with this same problem. My CPU usage often keep over 90%! I really don't know what to do to solve this problem.
Can you help me please???
Thank you so much!!!!
Filipe

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Hi,
on 10 g R2, on Windows SEVER 2003
oracle user SCOTT connect from SQLPLUS and runs a large query. Is there any way to see how much CPU does he use ?
Thanks.

CPU used by a user(session wise)
select a.sid, a.username, a.osuser, c.name, b.value
from v$session a, v$sesstat b, v$statname c
where a.sid = b.sid
and b.statistic# = c.statistic#
and c.name like '%CPU%'
and a.username='SCOTT'
order by a.sid, c.name
Per user (session wise) following information:
1.cpu usages
2.memory sorts
3.table scan
4.commit
5.cursor
6.physical reads
7.logical reads
8.BCHR (buffer cache hit ratio)
select a.sid, a.username, a.osuser, c.name, b.value
from v$session a, v$sesstat b, v$statname c
where a.sid = b.sid
and b.statistic# = c.statistic#
and (c.name like '%CPU%' or c.name like '%sorts (memory)%' or c.name like '%table scan%' or c.name like '%commit%' or c.name like '%cursor%' or c.name like '%read%' or c.name like '%buffer%' or c.name like '%cache%')
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If you have the licences for the diagnostic pack and performance pack, you can look at the active session history for this type of information. You can query view DBA_HIST_ACTIVE_SESS_HISTORY, or run the ashrpt.sql script from $ORACLE_HOME/rdbms/admin, or use OEM for a graphic representation of the workload over time.
HTH
Girish Sharma
Edited by: Girish Sharma on Dec 8, 2009 5:23 PM
"and a.username='SCOTT'" added.

ITunes 11.0.4 - high CPU use

Hello,
since I upgraded to Mountain Lion 10.8.4. and iTunes to 11.0.4 a couple of days ago, iTunes keeps fooling around using up to 130% of my CPU (how is that even possible?!) when playing music. As soon as I pause the music, the CPU-use goes back to >1%. Before the upgrades I had a big library with over 170GB of music (no only a few albums) and no problems using iTunes whatsoever.
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Yessss! i' ve finally found the issue !
The problem was with "smart play lists" i dunno how you call it in english, but i' ve created a long time ago a smart playlist named "unread" because the "all random" function is not so much random for me, as they play some tracks more often than others...
With as criteria " numbers of play = 0 " so one title is played one time!
By using my brain as good as i can, i told myself " what itunes do when a song ends and then go to the next?"
It wrote something on the smart play list or something like that
Then test from "play all random" = no more issue !
Then deleted my smart play list and recreate one identical = problem solved !
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Excessive cpu use and crashes

I've been having many crashes lately. One of the odd symptoms is that the Activity Monitor shows huge amounts of cpu use graphically, while at the same time showing very little use in the written list. A screenshot is here
http://www.flickr.com/photos/34043585@N00/2363034014/sizes/o/
and here
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I went through my fonts tonight and repaired my disk permissions. However, I still get this error message when I run a permissions check:
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Dear All ,
How to find a memory and CPU used by a specific concurrent program ?
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Hi,
How to find a memory and CPU used by a specific concurrent program ?
Could you please let us can we get the
memory used for a specific concurrent request .
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3-D is very memory intensive.
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Mac OS X v10.7, v10.8, or v10.9
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It can be a challenge to use scripting to automate working with Cisco devices. The Cisco IOS does not seem to directly provide a command line interface. You are forced to find a way to automate interaction with a telnet or ssh session.
The PERL language provides a number of object-oriented methods to help manage an interactive session, most notably Net::SSH::Expect and Net::Appliance::Session. These options can work well in a Unix environment, but not under MS Windows.
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The teacup program that is installed with the base Tcl package makes this easy. The teacup program will work with a proxy.
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set http_proxy_user=
set http_proxy_pass=
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Change directory to where your script, plink.exe and data is stored and run with tclsh <script_name>
devices.list
# Comment lines are allowed if they start with a hash mark
# <IP_Addr> <userid> <password> <ssh|telnet> <timeout_in_secs>
nnn.nnn.nnn.nnn    <userid>    <password> ssh         <timeout_in_secs>
nnn.nnn.nnn.nnn    <userid>    <password> telnet      30
commands.list
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term length 0
show run
exit
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exp_log_user 0
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set exp::nt_debug 0
set prompt "(#\s*$|>\s*$)"
set env(TERM) dumb
set file_channel [open "devices.list" r]
set DEVICES      [read $file_channel]
close $file_channel
set file_channel [open "commands.list" r]
set COMMANDS      [read $file_channel]
close $file_channel
set command_entries [split $COMMANDS "\n"]
set device_entries [split $DEVICES "\n"]
proc timedout {{msg {none}}} {
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      exit 1
foreach device_entry $device_entries {
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      set device [lindex $device_entry 0]
      set user    [lindex $device_entry 1]
      set pass    [lindex $device_entry 2]
      set mode    [lindex $device_entry 3]
      set wait    [lindex $device_entry 4]
      set serial [lindex $device_entry 5]
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      # puts "User=$user"
      # puts "Mode=$mode"
      # puts "Wait=$wait"
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            "serial" { set pid [spawn plink -serial $serial -l $user -pw $pass $device] }
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            timedout "in user login"
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            timedout "spawn failed with eof on login"
            } -re "(login|Username):.*" {
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            timedout "in while loop"
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            if {[string length $command] == 0 || [regexp {[ \t]*#} $command]} { continue }
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            # If the login is successful, the code in the if statement below is used to send the "cmd" request
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            # able to close the spawned process, and you may need to kill it manually.
      catch { exp_close -i $id }
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*** End of Document ***

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Any help an experienced user can offer me would really be appreciated.
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discussed like ****
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Please, i am ready even to pay someone who will show the techique

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Pegged CPU using Scripter MIDI FX

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