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RE: [linrad] Out of memory errors

To: <linrad@xxxxxxxxxxxxxxxxxxxxxx>
Subject: RE: [linrad] Out of memory errors
From: "Sonntag, Henry" <Henry.Sonntag@xxxxxxx>
Date: Tue, 16 Mar 2004 09:22:28 -0500
Reply-to: linrad@xxxxxxxxxxxxxxxxxxxxxx
Sender: owner-linrad@xxxxxxxxxxxxxxxxxxxxxx
Thread-index: AcQLX7PR7rQv5RIySCClKbXu8VSEmgAAX6ww
Thread-topic: [linrad] Out of memory errors
Hello Leif,
Thanks for your answer and sorry about the curt email.

I was using an x-console which does use a lot of memory. I then tried
running Linrad from runlevel 3. Still did not work and received the same
error message. Linux reported 217 Mbytes free and I have a 128 Mbyte
swap space. So there should be plenty of memory.


Any further suggestions would be appreciated.

Henry
w2hes

	-----Original Message-----
	From: owner-linrad@xxxxxxxxxxxxxxxxxxxxxx
[mailto:owner-linrad@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Leif Asbrink
	Sent: Tuesday, March 16, 2004 8:59 AM
	To: linrad@xxxxxxxxxxxxxxxxxxxxxx
	Subject: RE: [linrad] Out of memory errors


	Hello Henry,


	The call to mlockall() fails to lock the RAM area used by
Linrad.
	

	Maybe your RAM is reserved for a large RAM disk or there is
	some other program running. Are you perhaps running in a console

	under X?
	

	The calls to mlockall() were added recently because I have had
	reports indicating that some Linrad users run Linrad off the
hard disk
	(swapped by Linux) The behaviour is a bit
unpredictable...........
	

	Linrad does not need much computing resources. I uploaded a
screen
	dump today after verifying Linrad-00.15 on a Pentium 133 MHz.
The
	image shows seven hours of (simulated) VLF waterfall at a FFT
bin
	width of about 0.005 Hz. The soundcard was sampling at 22050 kHz
	which is much higher than typically needed. Yet the CPU load was
below
	50% and about 5 megabytes of ram was used.
	

	So, Henry, I am pretty sure your computer hass the memory
needed,

	but I do not know why Linrad is denied to lock it. Unless
someone else
	gives the explanation, please give more details.
	

	

	73
	

	Leif
	

	


		Hi,

		I'm getting "out of memory" errors with Linrad 1-.15
regardless of the parameter settings. Any suggestions?

		Henry

		w2hes




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<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff size=2>Hello

Leif,</FONT></SPAN></DIV>
<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff size=2>Thanks

for your answer and sorry about the curt email.</FONT></SPAN></DIV>
<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff

size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff size=2>I was

using an x-console which does use a lot of memory. I then tried running Linrad

from runlevel 3. Still did not work and received the same error message. Linux

reported 217 Mbytes free and I have a 128 Mbyte swap space. So there should be

plenty of memory. </FONT></SPAN></DIV>
<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff

size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff size=2>Any

further suggestions would be appreciated.</FONT></SPAN></DIV>
<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff

size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff

size=2>Henry</FONT></SPAN></DIV>
<DIV><SPAN class=076561514-16032004><FONT face=Arial color=#0000ff

size=2>w2hes</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
  <DIV></DIV>
  <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT

  face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>

  owner-linrad@xxxxxxxxxxxxxxxxxxxxxx

  [mailto:owner-linrad@xxxxxxxxxxxxxxxxxxxxxx] <B>On Behalf Of </B>Leif

  Asbrink<BR><B>Sent:</B> Tuesday, March 16, 2004 8:59 AM<BR><B>To:</B>

  linrad@xxxxxxxxxxxxxxxxxxxxxx<BR><B>Subject:</B> RE: [linrad] Out of memory

  errors<BR><BR></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT size=2><SPAN class=855024413-16032004><FONT

  face=Arial color=#0000ff>Hello Henry,&nbsp;</FONT></SPAN><BR><BR><SPAN

  class=855024413-16032004><FONT face=Arial color=#0000ff>The call to mlockall()

  fails to lock the RAM area used by Linrad.</FONT></SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <DIV><FONT face=Tahoma><FONT size=2><SPAN class=855024413-16032004><FONT

  face=Arial color=#0000ff>Maybe your RAM is reserved for a large RAM disk or

  there is</FONT></SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT size=2><SPAN class=855024413-16032004><FONT

  face=Arial color=#0000ff>some other program running. Are you perhaps running

  in a console </FONT></SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT size=2><SPAN class=855024413-16032004><FONT

  face=Arial color=#0000ff>under X?</FONT></SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>The calls to mlockall() were added recently because I

  have had</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>reports indicating that some Linrad users run Linrad

  off the hard disk</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>(swapped by Linux) The behaviour is a bit

  unpredictable...........</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>Linrad does not need much computing resources. I

  uploaded a screen</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>dump today after verifying Linrad-00.15 on a Pentium

  133 MHz. The</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>image shows seven hours of (simulated) VLF waterfall

  at a FFT bin</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>width of about 0.005 Hz. The soundcard was sampling

  at 22050 kHz</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>which is much higher than typically needed. Yet the

  CPU load was below</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>50% and about 5 megabytes of ram was

  used.</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>So, Henry, I am pretty sure your computer hass the

  memory needed, </SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>but I do not know why Linrad is denied to lock it.

  Unless someone else</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>gives the explanation, please give more

  details.</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>73</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004>Leif</SPAN></FONT></FONT></DIV>
  <DIV><FONT face=Tahoma><FONT face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT><FONT face=Tahoma><FONT

  face=Arial color=#0000ff size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <DIV><FONT face=Tahoma><FONT size=2><SPAN

  class=855024413-16032004></SPAN></FONT></FONT>&nbsp;</DIV>
  <BLOCKQUOTE

  style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid"><!-- Converted from text/rtf format -->
    <P><FONT face=Arial size=2>Hi,</FONT> <BR><FONT face=Arial size=2>I'm

    getting "out of memory" errors with Linrad 1-.15 regardless of the parameter

    settings. Any suggestions?</FONT> <BR><FONT face=Arial size=2>Henry</FONT>

    <BR><FONT face=Arial size=2>w2hes</FONT>

</P></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>

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The recipient should check this email and any attachments for the presence of viruses. ITT Industries accepts no liability for any damage caused by any virus transmitted by this
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