Merging upstream version 1.19.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 329 deletions

diff --git a/tests/profile/benchmark-procfile-parser.c b/tests/profile/benchmark-procfile-parser.c
deleted file mode 100644
index 991e2dfc..00000000
--- a/tests/profile/benchmark-procfile-parser.c
+++ /dev/null
@@ -1,329 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-
-#include "config.h"
-#include "libnetdata/libnetdata.h"
-
-void netdata_cleanup_and_exit(int ret) {
-	exit(ret);
-}
-
-#define PF_PREFIX "PROCFILE"
-#define PFWORDS_INCREASE_STEP 200
-#define PFLINES_INCREASE_STEP 10
-#define PROCFILE_INCREMENT_BUFFER 512
-extern size_t procfile_max_lines;
-extern size_t procfile_max_words;
-extern size_t procfile_max_allocation;
-
-
-static inline void pflines_reset(pflines *fl) {
-    // debug(D_PROCFILE, PF_PREFIX ":   reseting lines");
-
-    fl->len = 0;
-}
-
-static inline void pflines_free(pflines *fl) {
-    // debug(D_PROCFILE, PF_PREFIX ":   freeing lines");
-
-    freez(fl);
-}
-
-static inline void pfwords_reset(pfwords *fw) {
-    // debug(D_PROCFILE, PF_PREFIX ":   reseting words");
-    fw->len = 0;
-}
-
-
-static inline void pfwords_add(procfile *ff, char *str) {
-    // debug(D_PROCFILE, PF_PREFIX ":   adding word No %d: '%s'", fw->len, str);
-
-    pfwords *fw = ff->words;
-    if(unlikely(fw->len == fw->size)) {
-        // debug(D_PROCFILE, PF_PREFIX ":   expanding words");
-
-        ff->words = fw = reallocz(fw, sizeof(pfwords) + (fw->size + PFWORDS_INCREASE_STEP) * sizeof(char *));
-        fw->size += PFWORDS_INCREASE_STEP;
-    }
-
-    fw->words[fw->len++] = str;
-}
-
-NEVERNULL
-static inline size_t *pflines_add(procfile *ff) {
-    // debug(D_PROCFILE, PF_PREFIX ":   adding line %d at word %d", fl->len, first_word);
-
-    pflines *fl = ff->lines;
-    if(unlikely(fl->len == fl->size)) {
-        // debug(D_PROCFILE, PF_PREFIX ":   expanding lines");
-
-        ff->lines = fl = reallocz(fl, sizeof(pflines) + (fl->size + PFLINES_INCREASE_STEP) * sizeof(ffline));
-        fl->size += PFLINES_INCREASE_STEP;
-    }
-
-    ffline *ffl = &fl->lines[fl->len++];
-    ffl->words = 0;
-    ffl->first = ff->words->len;
-
-    return &ffl->words;
-}
-
-
-NOINLINE
-static void procfile_parser(procfile *ff) {
-    // debug(D_PROCFILE, PF_PREFIX ": Parsing file '%s'", ff->filename);
-
-    char  *s = ff->data                 // our current position
-        , *e = &ff->data[ff->len]       // the terminating null
-        , *t = ff->data;                // the first character of a word (or quoted / parenthesized string)
-
-                                        // the look up array to find our type of character
-    PF_CHAR_TYPE *separators = ff->separators;
-
-    char quote = 0;                     // the quote character - only when in quoted string
-    size_t opened = 0;                  // counts the number of open parenthesis
-
-    size_t *line_words = pflines_add(ff);
-
-    while(s < e) {
-        PF_CHAR_TYPE ct = separators[(unsigned char)(*s)];
-
-        // this is faster than a switch()
-        // read more here: http://lazarenko.me/switch/
-        switch(ct) {
-        	case PF_CHAR_IS_SEPARATOR:
-	            if(!quote && !opened) {
-	                if (s != t) {
-	                    // separator, but we have word before it
-	                    *s = '\0';
-	                    pfwords_add(ff, t);
-	                    (*line_words)++;
-	                }
-	                t = s + 1;
-	            }
-	            // fallthrough
-
-			case PF_CHAR_IS_WORD:
-				s++;
-				break;
-
-
-		    case PF_CHAR_IS_NEWLINE:
-		        // end of line
-
-		        *s = '\0';
-		        pfwords_add(ff, t);
-		        (*line_words)++;
-		        t = ++s;
-
-		        // debug(D_PROCFILE, PF_PREFIX ":   ended line %d with %d words", l, ff->lines->lines[l].words);
-
-		        line_words = pflines_add(ff);
-		    	break;
-
-		    case PF_CHAR_IS_QUOTE:
-		        if(unlikely(!quote && s == t)) {
-		            // quote opened at the beginning
-		            quote = *s;
-		            t = ++s;
-		        }
-		        else if(unlikely(quote && quote == *s)) {
-		            // quote closed
-		            quote = 0;
-
-		            *s = '\0';
-		            pfwords_add(ff, t);
-		            (*line_words)++;
-		            t = ++s;
-		        }
-		        else
-		            s++;
-		    	break;
-
-		    case PF_CHAR_IS_OPEN:
-		        if(s == t) {
-		            opened++;
-		            t = ++s;
-		        }
-		        else if(opened) {
-		            opened++;
-		            s++;
-		        }
-		        else
-		            s++;
-		    	break;
-
-		    case PF_CHAR_IS_CLOSE:
-		        if(opened) {
-		            opened--;
-
-		            if(!opened) {
-		                *s = '\0';
-		                pfwords_add(ff, t);
-		                (*line_words)++;
-		                t = ++s;
-		            }
-		            else
-		                s++;
-		        }
-		        else
-		            s++;
-		    	break;
-
-		    default:
-		        fatal("Internal Error: procfile_readall() does not handle all the cases.");
-    	}
-	}
-
-    if(likely(s > t && t < e)) {
-        // the last word
-        if(unlikely(ff->len >= ff->size)) {
-            // we are going to loose the last byte
-            s = &ff->data[ff->size - 1];
-        }
-
-        *s = '\0';
-        pfwords_add(ff, t);
-        (*line_words)++;
-        // t = ++s;
-    }
-}
-
-
-procfile *procfile_readall1(procfile *ff) {
-    // debug(D_PROCFILE, PF_PREFIX ": Reading file '%s'.", ff->filename);
-
-    ff->len = 0;    // zero the used size
-    ssize_t r = 1;  // read at least once
-    while(r > 0) {
-        ssize_t s = ff->len;
-        ssize_t x = ff->size - s;
-
-        if(unlikely(!x)) {
-            debug(D_PROCFILE, PF_PREFIX ": Expanding data buffer for file '%s'.", procfile_filename(ff));
-            ff = reallocz(ff, sizeof(procfile) + ff->size + PROCFILE_INCREMENT_BUFFER);
-            ff->size += PROCFILE_INCREMENT_BUFFER;
-        }
-
-        debug(D_PROCFILE, "Reading file '%s', from position %zd with length %zd", procfile_filename(ff), s, (ssize_t)(ff->size - s));
-        r = read(ff->fd, &ff->data[s], ff->size - s);
-        if(unlikely(r == -1)) {
-            if(unlikely(!(ff->flags & PROCFILE_FLAG_NO_ERROR_ON_FILE_IO))) error(PF_PREFIX ": Cannot read from file '%s' on fd %d", procfile_filename(ff), ff->fd);
-            procfile_close(ff);
-            return NULL;
-        }
-
-        ff->len += r;
-    }
-
-    // debug(D_PROCFILE, "Rewinding file '%s'", ff->filename);
-    if(unlikely(lseek(ff->fd, 0, SEEK_SET) == -1)) {
-        if(unlikely(!(ff->flags & PROCFILE_FLAG_NO_ERROR_ON_FILE_IO))) error(PF_PREFIX ": Cannot rewind on file '%s'.", procfile_filename(ff));
-        procfile_close(ff);
-        return NULL;
-    }
-
-    pflines_reset(ff->lines);
-    pfwords_reset(ff->words);
-    procfile_parser(ff);
-
-    if(unlikely(procfile_adaptive_initial_allocation)) {
-        if(unlikely(ff->len > procfile_max_allocation)) procfile_max_allocation = ff->len;
-        if(unlikely(ff->lines->len > procfile_max_lines)) procfile_max_lines = ff->lines->len;
-        if(unlikely(ff->words->len > procfile_max_words)) procfile_max_words = ff->words->len;
-    }
-
-    // debug(D_PROCFILE, "File '%s' updated.", ff->filename);
-    return ff;
-}
-
-
-
-
-
-
-
-
-// ==============
-// --- Poor man cycle counting.
-static unsigned long tsc;
-
-void begin_tsc(void)
-{
-  unsigned long a, d;
-  asm volatile ("cpuid\nrdtsc" : "=a" (a), "=d" (d) : "0" (0) : "ebx", "ecx");
-  tsc = ((unsigned long)d << 32) | (unsigned long)a;
-}
-
-unsigned long end_tsc(void)
-{
-  unsigned long a, d;
-  asm volatile ("rdtscp" : "=a" (a), "=d" (d) : : "ecx");
-  return (((unsigned long)d << 32) | (unsigned long)a) - tsc;
-}
-// ==============
-
-
-unsigned long test_netdata_internal(void) {
-	static procfile *ff = NULL;
-
-	ff = procfile_reopen(ff, "/proc/self/status", " \t:,-()/", PROCFILE_FLAG_NO_ERROR_ON_FILE_IO);
-	if(!ff) {
-		fprintf(stderr, "Failed to open filename\n");
-		exit(1);
-	}
-
-	begin_tsc();
-	ff = procfile_readall(ff);
-	unsigned long c = end_tsc();
-
-	if(!ff) {
-		fprintf(stderr, "Failed to read filename\n");
-		exit(1);
-	}
-
-	return c;
-}
-
-unsigned long test_method1(void) {
-	static procfile *ff = NULL;
-
-	ff = procfile_reopen(ff, "/proc/self/status", " \t:,-()/", PROCFILE_FLAG_NO_ERROR_ON_FILE_IO);
-	if(!ff) {
-		fprintf(stderr, "Failed to open filename\n");
-		exit(1);
-	}
-
-	begin_tsc();
-	ff = procfile_readall1(ff);
-	unsigned long c = end_tsc();
-
-	if(!ff) {
-		fprintf(stderr, "Failed to read filename\n");
-		exit(1);
-	}
-
-	return c;
-}
-
-//--- Test
-int main(int argc, char **argv)
-{
-	(void)argc; (void)argv;
-
-	int i, max = 1000000;
-
-	unsigned long c1 = 0;
-	test_netdata_internal();
-	for(i = 0; i < max ; i++)
-		c1 += test_netdata_internal();
-
-	unsigned long c2 = 0;
-	test_method1();
-	for(i = 0; i < max ; i++)
-		c2 += test_method1();
-
-	printf("netdata internal: completed in %lu cycles, %lu cycles per read, %0.2f %%.\n", c1, c1 / max, (float)c1 * 100.0 / (float)c1);
-	printf("method1         : completed in %lu cycles, %lu cycles per read, %0.2f %%.\n", c2, c2 / max, (float)c2 * 100.0 / (float)c1);
-
-	return 0;
-}