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swchunk(5) -- swap chunk size in 1 KB blocks
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Swap space in the kernel is managed using 'chunks' of physical device space. These chunks contain one or more (usually more) pages of memory, but provide another layer of indexing (similar to inodes in file systems) to keep the global swap table relatively small, as opposed to a large table indexed by swap page. swchunk controls the size in physical disk blocks (which are defined as 1 KB) for ea... |
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sysv_hash_locks(5) -- System V IPC hashed spinlock pool size
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The sysv_hash_locks tunable specifies the size of the hashed spinlock (kernel data structures used for synchronization) pool (number of available spinlocks). The System V IPC semaphore functions acquire hashed spinlocks based on the semaphore ID. The spinlocks are hashed to avoid the memory user needed for semmni spinlocks but to also avoid the contention of having just one spinlock. For more info... |
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tcphashsz(5) -- determines the size of the networking hash tables
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This variable is used to set the size of the networking hash tables. A system that is going to have a large number of connections on it all of the time may see some benefit of increasing this value. This tunable needs to be a power of two. If it is not specified as a power of two, then it is rounded down to the nearest power of two. Who Is Expected to Change This Tunable? Anyone. |
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term(5) -- terminal capabilities
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The following data type is defined through typedef: TERMINAL An opaque representation of the capabilities for a single terminal from the terminfo database. The header provides a declaration for the following object: cur_term . It represents the current terminal record from the terminfo database that the application has selected by calling set_curterm(). The header contains the va... |
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thread_safety(5) -- list of libc, libpthread and libgen interfaces which
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Refer to this man page when writing thread-safe applications using libc, libpthread and libgen interfaces. This man page gives the list of libc, libpthread and libgen interfaces which are: Not thread-safe, Cancellation Points, Cancel Safe, Async Signal Safe, and Async Cancel Safe. |
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timeslice(5) -- scheduling interval in clock ticks per second
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The timeslice tunable defines the scheduling time interval that a thread may execute on a processor before the kernel scheduler will context switch out the thread for other same priority threads to run. When a thread starts executing on a processor, the thread is set up to run for the number of ticks in the timeslice tunable. On every clock interrupt that a thread is found executing, the time quan... |
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timezone(5) -- difference between Universal (Greenwich mean) time and Local time
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The timezone tunable is the difference between Greenwich mean time (Universal Time) and local time, expressed as minutes west of Greenwich, England. The dst tunable indicates whether the timezone tunable is to be interpreted as a standard or daylight savings time value. These tunables provide a way to convert between Grenwich Mean Time (or Universal Time) and local time. Although timezone is a tun... |
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Traits(5) -- Lists the traits used by the Motif Toolkit.
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A trait is a characteristic of a widget. A widget holding a particular trait is announcing a particular ability to other widgets. The following table summarizes the standard Motif traits. ___________________________________________________________ Purpose of Each Trait Trait Name A Widget Holding This Trait Can Do The Following: ___________________________________________________________ XmQTacces... |
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Tttttk(5) -- ToolTalk definitions
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The Tt/tttk.h header defines the following enumeration data type, with at least the following members: Tttk_op TTDT_CREATED, TTDT_DELETED, TTDT_DO_COMMAND, TTDT_GET_ENVIRONMENT, TTDT_GET_GEOMETRY, TTDT_GET_ICONIFIED, TTDT_GET_LOCALE, TTDT_GET_MAPPED, TTDT_GET_MODIFIED, TTDT_GET_SITUATION, TTDT_GET_STATUS, TTDT_GET_SYSINFO, TTDT_GET_XINFO, TTDT_LOWER, TTDT_MODIFIED, TTDT_MOVED, TTDT_OP_LAST, TTDT_O... |
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Tttt_c(5) -- ToolTalk definitions
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The Tt/tt_c.h header includes typedefs for the following callback functions: typedef Tt_filter_action (*Tt_filter_function)(const char *nodeid, void *context, void *accumulator); typedef Tt_callback_action (*Tt_message_callback)(Tt_message m, Tt_pattern p); To enable developers to write multithreaded applications, the header defines typedef enum tt_feature { _TT_FEATURE_MULTITHREADED = 1, // Threa... |
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types(5) -- primitive system data types
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Remarks The example given on this page is a typical version. The type names are in general expected to be present, although exceptions (if any) may be described in DEPENDENCIES. In most cases the fundamental type which implements each typedef is implementation dependent as long as source code which uses those typedefs need not be changed. In some cases the typedef is actually a shorthand for a com... |
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UIL(5) -- The user interface language file format
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The UIL language is used for describing the initial state of a user interface for a widget based application. UIL describes the widgets used in the interface, the resources of those widgets, and the callbacks of those widgets. The UIL file is compiled into a UID file using the command uil or by the callable compiler Uil(). The contents of the compiled UID file can then be accessed by the various M... |
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unistd(5) -- standard structures and symbolic constants
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The header defines the following structures and symbolic constants: Symbolic constants for the access() function: R_OK Test for read permission. W_OK Test for write permission. X_OK Test for execute (search) permission. F_OK Test for existence of file. The constants F_OK, R_OK, W_OK, and X_OK and the expressions R_OK|W_OK, R_OK|X_OK, and R_OK|W_OK|X_OK all have distinct values. Symbolic... |
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unlockable_mem(5) -- amount of physical memory that may not be locked by user processes
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Memory locking allows the privileged user to specify which pages need to remain in memory, and unaffected by the swap process. This feature allows you to ensure that memory access times are unaffected by delays introduced by memory paging and swapping. For example, locking is a tool provided to privileged users on a system that is short on physical memory. Instead of having these privileged proces... |
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unwind(5) -- overview of stack unwind library entry points and convenience macros
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The header defines the Application Programming Interface (API) of the stack unwind library, supplied as libunwind.so for HP-UX on Itanium-based systems. This page discusses the general concepts of stack unwinding and how the stack unwind library is intended to be used. It is intended to complement the section 3X manual pages describing unwind library entry points. This page also explain... |
