diff options
| author | John Ogness <john.ogness@linutronix.de> | 2018-02-20 15:03:14 +0100 |
|---|---|---|
| committer | John Ogness <john.ogness@linutronix.de> | 2018-02-20 15:03:14 +0100 |
| commit | 021b32acd3cec8e255dd47681939797ec64b8206 (patch) | |
| tree | f6aa8e57b5bbc8045ae9ec87f4cebac764149ebf | |
| parent | dba99eeb7689d594f9d704d8b7de15432279aa82 (diff) | |
tools: rename 'rtex' tool to 'pgflt'
The rtex tool only demonstrates prefaultingn to avoid runtime
page faults. It makes more sense to call it pgflt.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
| -rw-r--r-- | schulung_tools/pgflt/Makefile | 7 | ||||
| -rw-r--r-- | schulung_tools/pgflt/README.txt (renamed from schulung_tools/rtex/README.txt) | 6 | ||||
| -rw-r--r-- | schulung_tools/pgflt/func.c (renamed from schulung_tools/rtex/func.c) | 0 | ||||
| -rw-r--r-- | schulung_tools/pgflt/main.c (renamed from schulung_tools/rtex/main.c) | 0 | ||||
| -rw-r--r-- | schulung_tools/pgflt/rt.c (renamed from schulung_tools/rtex/rt.c) | 0 | ||||
| -rw-r--r-- | schulung_tools/rtex/Makefile | 7 |
6 files changed, 10 insertions, 10 deletions
diff --git a/schulung_tools/pgflt/Makefile b/schulung_tools/pgflt/Makefile new file mode 100644 index 0000000..fb70f96 --- /dev/null +++ b/schulung_tools/pgflt/Makefile @@ -0,0 +1,7 @@ +pgflt: main.c func.c rt.c + gcc -O0 -o$@ $+ -lrt + +clean: + rm -f pgflt + +.PHONY: clean diff --git a/schulung_tools/rtex/README.txt b/schulung_tools/pgflt/README.txt index ce33bcf..6bc49ba 100644 --- a/schulung_tools/rtex/README.txt +++ b/schulung_tools/pgflt/README.txt @@ -1,4 +1,4 @@ -The rtex program demonstrates the importance of using several tricks to +The pgflt program demonstrates the importance of using several tricks to avoid page faults and memory allocation during critical runtime. It displays the amount of time taken and generated page faults when performing various tasks. This clearly shows the expense due to page faults. @@ -17,7 +17,7 @@ running the test without any rt tweaks - first big malloc+access very expensive - second big malloc+access very expensive - first big stack very expensive -$ sudo ./rtex 0x10 +$ sudo ./pgflt 0x10 options: 0x10 5715 ns 0 faults : main setup 17466150 ns 2561 faults : testfunc_malloc (0) @@ -33,7 +33,7 @@ running the test with all rt tweaks - main setup very slow (does it really matter?) - no expensive malloc+access calls - no expensive big stacks -$ sudo ./rtex 0x1f +$ sudo ./pgflt 0x1f options: 0x1f 31276098 ns 7083 faults : main setup 2657466 ns 0 faults : testfunc_malloc (0) diff --git a/schulung_tools/rtex/func.c b/schulung_tools/pgflt/func.c index 4b88166..4b88166 100644 --- a/schulung_tools/rtex/func.c +++ b/schulung_tools/pgflt/func.c diff --git a/schulung_tools/rtex/main.c b/schulung_tools/pgflt/main.c index a68baf4..a68baf4 100644 --- a/schulung_tools/rtex/main.c +++ b/schulung_tools/pgflt/main.c diff --git a/schulung_tools/rtex/rt.c b/schulung_tools/pgflt/rt.c index 86a6506..86a6506 100644 --- a/schulung_tools/rtex/rt.c +++ b/schulung_tools/pgflt/rt.c diff --git a/schulung_tools/rtex/Makefile b/schulung_tools/rtex/Makefile deleted file mode 100644 index 330bc01..0000000 --- a/schulung_tools/rtex/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -rtex: main.c func.c rt.c - gcc -O0 $+ -o$@ - -clean: - rm -f rtex - -.PHONY: clean |