| LIBTRACEEVENT(3) | libtraceevent Manual | LIBTRACEEVENT(3) |
tep_get_page_size, tep_set_page_size, tep_get_sub_buffer_size - Get / set the size of a memory page on the machine, where the trace is generated
#include <event-parse.h> int tep_get_page_size(struct tep_handle *tep); void tep_set_page_size(struct tep_handle *tep, int page_size); int tep_get_sub_buffer_size(struct tep_handle *tep);
The tep_get_page_size() function returns the size of a memory page on the machine, where the trace is generated. The tep argument is trace event parser context.
The tep_set_page_size() function stores in the tep context the size of a memory page on the machine, where the trace is generated. The tep argument is trace event parser context. The page_size argument is the size of a memory page, in bytes.
The tep_get_sub_buffer_size() returns the size of each "sub buffer" of the ring buffer. The Linux kernel ring buffer is broken up into sections called sub buffers. This returns the size of those buffers.
The tep_get_page_size() function returns size of the memory page, in bytes.
The tep_get_sub_buffer_size() function returns the number of bytes each sub buffer is made up of.
#include <unistd.h> #include <event-parse.h> ... struct tep_handle *tep = tep_alloc(); ...
int page_size = getpagesize();
tep_set_page_size(tep, page_size);
printf("The page size for this machine is %d\n", tep_get_page_size(tep));
event-parse.h
Header file to include in order to have access to the library APIs. -ltraceevent
Linker switch to add when building a program that uses the library.
Steven Rostedt <rostedt@goodmis.org[1]>, author of libtraceevent. Tzvetomir Stoyanov <tz.stoyanov@gmail.com[2]>, author of this man page.
Report bugs to <linux-trace-devel@vger.kernel.org[3]>
libtraceevent is Free Software licensed under the GNU LGPL 2.1
https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/
| 01/18/2023 | libtraceevent 1.7.1 |