experiments/clixon
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* Added option: CLICON_CLI_BUF_START and CLICON_CLI_BUF_THRESHOLD so you can change the start and

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threshold of quadratic and linear growth of CLIgen buffers (cbuf:s)
* Memory footprint
  * Do not autopopulate namespace cache, instead use on-demand, see `xml2ns()`.
  * Set CBUF start level to 256 (`CLICON_CLI_BUF_START` option)
  * Reduced xml child vector default size from 4 to 1 with quadratic growoth to 64K then linear
This commit is contained in:
Olof hagsand 2020-03-04 11:27:43 +01:00
parent 250ead517c
commit 0f54899ae4
17 changed files with 393 additions and 124 deletions
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15
apps/backend/backend_client.c
View file

@ -266,24 +266,23 @@ client_get_streams(clicon_handle h,
*/
static int
clixon_stats_get_db(clicon_handle h,
char *name,
char *dbname,
cbuf *cb)
{
int retval = -1;
cxobj *xt = NULL;
uint64_t nr = 0;
size_t sz = 0;
if (xmldb_get(h, "running", NULL, NULL, &xt) < 0)
goto done;
db_elmnt *de = NULL;
/* This is the db cache */
if ((de = clicon_db_elmnt_get(h, dbname)) != NULL)
xt = de->de_xml;
xml_stats(xt, &nr, &sz);
cprintf(cb, "<datastore><name>%s</name><nr>%" PRIu64 "</nr>"
"<size>%" PRIu64 "</size></datastore>",
name, nr, sz);
dbname, nr, sz);
retval = 0;
done:
if (xt)
free(xt);
return retval;
}

9
apps/backend/backend_main.c
View file

@ -460,6 +460,8 @@ main(int argc,
char *dir;
gid_t gid = -1;
cvec *nsctx_global = NULL; /* Global namespace context */
size_t cligen_buflen;
size_t cligen_bufthreshold;
/* In the startup, logs to stderr & syslog and debug flag set later */
clicon_log_init(__PROGRAM__, LOG_INFO, logdst);
@ -623,11 +625,16 @@ main(int argc,
clicon_argv_set(h, argv0, argc, argv);
clicon_log_init(__PROGRAM__, debug?LOG_DEBUG:LOG_INFO, logdst);
/* Defer: Wait to the last minute to print help message */
if (help)
usage(h, argv[0]);
/* Init cligen buffers */
cligen_buflen = clicon_option_int(h, "CLICON_CLI_BUF_START");
cligen_bufthreshold = clicon_option_int(h, "CLICON_CLI_BUF_THRESHOLD");
cbuf_alloc_set(cligen_buflen, cligen_bufthreshold);
#ifndef HAVE_LIBXML2
if (clicon_yang_regexp(h) == REGEXP_LIBXML2){
clicon_err(OE_FATAL, 0, "CLICON_YANG_REGEXP set to libxml2, but HAVE_LIBXML2 not set (Either change CLICON_YANG_REGEXP to posix, or run: configure --with-libxml2))");