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-rw-r--r--libnetdata/procfile/procfile.c30
1 files changed, 20 insertions, 10 deletions
diff --git a/libnetdata/procfile/procfile.c b/libnetdata/procfile/procfile.c
index ce412f4b0..19964da17 100644
--- a/libnetdata/procfile/procfile.c
+++ b/libnetdata/procfile/procfile.c
@@ -4,9 +4,9 @@
#define PF_PREFIX "PROCFILE"
-#define PFWORDS_INCREASE_STEP 200
-#define PFLINES_INCREASE_STEP 10
-#define PROCFILE_INCREMENT_BUFFER 512
+#define PFWORDS_INCREASE_STEP 2000
+#define PFLINES_INCREASE_STEP 200
+#define PROCFILE_INCREMENT_BUFFER 4096
int procfile_open_flags = O_RDONLY;
@@ -48,9 +48,12 @@ static inline void pfwords_add(procfile *ff, char *str) {
pfwords *fw = ff->words;
if(unlikely(fw->len == fw->size)) {
// debug(D_PROCFILE, PF_PREFIX ": expanding words");
+ size_t minimum = PFWORDS_INCREASE_STEP;
+ size_t optimal = fw->size / 2;
+ size_t wanted = (optimal > minimum)?optimal:minimum;
- ff->words = fw = reallocz(fw, sizeof(pfwords) + (fw->size + PFWORDS_INCREASE_STEP) * sizeof(char *));
- fw->size += PFWORDS_INCREASE_STEP;
+ ff->words = fw = reallocz(fw, sizeof(pfwords) + (fw->size + wanted) * sizeof(char *));
+ fw->size += wanted;
}
fw->words[fw->len++] = str;
@@ -90,9 +93,12 @@ static inline size_t *pflines_add(procfile *ff) {
pflines *fl = ff->lines;
if(unlikely(fl->len == fl->size)) {
// debug(D_PROCFILE, PF_PREFIX ": expanding lines");
+ size_t minimum = PFLINES_INCREASE_STEP;
+ size_t optimal = fl->size / 2;
+ size_t wanted = (optimal > minimum)?optimal:minimum;
- ff->lines = fl = reallocz(fl, sizeof(pflines) + (fl->size + PFLINES_INCREASE_STEP) * sizeof(ffline));
- fl->size += PFLINES_INCREASE_STEP;
+ ff->lines = fl = reallocz(fl, sizeof(pflines) + (fl->size + wanted) * sizeof(ffline));
+ fl->size += wanted;
}
ffline *ffl = &fl->lines[fl->len++];
@@ -272,9 +278,13 @@ procfile *procfile_readall(procfile *ff) {
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;
+ size_t minimum = PROCFILE_INCREMENT_BUFFER;
+ size_t optimal = ff->size / 2;
+ size_t wanted = (optimal > minimum)?optimal:minimum;
+
+ debug(D_PROCFILE, PF_PREFIX ": Expanding data buffer for file '%s' by %zu bytes.", procfile_filename(ff), wanted);
+ ff = reallocz(ff, sizeof(procfile) + ff->size + wanted);
+ ff->size += wanted;
}
debug(D_PROCFILE, "Reading file '%s', from position %zd with length %zd", procfile_filename(ff), s, (ssize_t)(ff->size - s));