58 lines
2.0 KiB
HTML
58 lines
2.0 KiB
HTML
<HTML>
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<HEAD>
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<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
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<META NAME="Generator" CONTENT="Microsoft Word 97">
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<META NAME="Template" CONTENT="C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\html.dot">
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<META NAME="GENERATOR" CONTENT="Mozilla/4.01b6C [en] (X11; I; Linux 2.1.47 i486) [Netscape]">
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<TITLE>Processes and Process Context</TITLE>
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</HEAD>
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<BODY BGCOLOR="#FFFFFF" LINK="#0000FF" VLINK="#800080">
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<DIV ALIGN=right> </DIV>
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<FONT COLOR="#3366FF"><FONT SIZE=+3><B>Timers</B></FONT></FONT>
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<BR><FONT COLOR="#3366FF"><FONT SIZE=+3> </FONT></FONT>
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<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=7 WIDTH="491" >
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<TR>
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<TD VALIGN=TOP WIDTH="48%">
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<UL><B><FONT COLOR="#FF0000"><FONT SIZE=+1>Linux</FONT></FONT></B></UL>
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</TD>
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<TD VALIGN=TOP WIDTH="4%">
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<UL><FONT SIZE=+1> </FONT></UL>
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</TD>
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<TD VALIGN=TOP WIDTH="48%">
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<UL><B><FONT COLOR="#FF0000"><FONT SIZE=+1>Windows NT</FONT></FONT></B></UL>
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</TD>
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</TR>
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<TR>
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<TD VALIGN=TOP WIDTH="48%">
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<UL><FONT SIZE=+1>The kernel records a process's creation time and the
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CPU time it has consumed including the time spent in user mode and time
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spent in system mode.</FONT>
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<P><FONT SIZE=+1>Processes may also have their own interval timers, which
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may be single shot or periodic. These can use signals to notify the process
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when timers expire.</FONT></UL>
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</TD>
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<TD VALIGN=TOP WIDTH="4%">
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<UL><FONT SIZE=+1> </FONT></UL>
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</TD>
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<TD VALIGN=TOP WIDTH="48%">
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<UL><FONT SIZE=+1>Timer objects exist as an Executive support service which
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will record the passage of time. After a set time or on expiry of a time
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interval the object becomes 'signalled' which will release all waiting
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threads.</FONT></UL>
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</TD>
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</TR>
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</TABLE>
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<BR>
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<DIV ALIGN=right> <A HREF="mutex.html"><IMG SRC="../gx/flower/cyan_lef.gif" BORDER=0 HEIGHT=31 WIDTH=31></A><A HREF="page1.html"><IMG SRC="../gx/flower/cyan_up.gif" BORDER=0 HEIGHT=31 WIDTH=31></A><A HREF="ipc.html"><IMG SRC="../gx/flower/cyan_rig.gif" BORDER=0 HEIGHT=31 WIDTH=31></A></DIV>
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</BODY>
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</HTML>
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