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r8839@Kushana: nickm | 2006-09-17 16:11:59 -0400

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Add some client performance XXXXs; try to move some common case tests higher on their decision trees.


svn:r8410
This commit is contained in:
Nick Mathewson 2006-09-17 20:12:10 +00:00
parent 547624dcff
commit 65974f82fa
2 changed files with 13 additions and 9 deletions
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2
src/or/main.c
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@ -749,6 +749,8 @@ run_scheduled_events(time_t now)
} }
if (time_to_try_getting_descriptors < now) { if (time_to_try_getting_descriptors < now) {
/* XXXX Maybe we should do this every 10sec when not enough info,
* and every 60sec when we have enough info -NM */
update_router_descriptor_downloads(now); update_router_descriptor_downloads(now);
time_to_try_getting_descriptors = now + DESCRIPTOR_RETRY_INTERVAL; time_to_try_getting_descriptors = now + DESCRIPTOR_RETRY_INTERVAL;
} }

20
src/or/routerlist.c
View File

@ -1672,6 +1672,8 @@ router_add_to_routerlist(routerinfo_t *router, const char **msg,
*/ */
for (i = 0; i < smartlist_len(routerlist->routers); ++i) { for (i = 0; i < smartlist_len(routerlist->routers); ++i) {
routerinfo_t *old_router = smartlist_get(routerlist->routers, i); routerinfo_t *old_router = smartlist_get(routerlist->routers, i);
/* XXXX This might be a slow point; can't we just look up in one of the
* digestmaps? -NM */
if (!crypto_pk_cmp_keys(router->identity_pkey,old_router->identity_pkey)) { if (!crypto_pk_cmp_keys(router->identity_pkey,old_router->identity_pkey)) {
if (router->cache_info.published_on <= if (router->cache_info.published_on <=
old_router->cache_info.published_on) { old_router->cache_info.published_on) {
@ -3434,18 +3436,18 @@ initiate_descriptor_downloads(routerstatus_t *source,
/** Return 0 if this routerstatus is obsolete, too new, isn't /** Return 0 if this routerstatus is obsolete, too new, isn't
* running, or otherwise not a descriptor that we would make any * running, or otherwise not a descriptor that we would make any
* use of even if we had it. Else return 1. */ * use of even if we had it. Else return 1. */
static int static INLINE int
client_would_use_router(routerstatus_t *rs, time_t now, or_options_t *options) client_would_use_router(routerstatus_t *rs, time_t now, or_options_t *options)
{ {
if (rs->published_on + ROUTER_MAX_AGE < now) {
/* This one is too old to consider. */
return 0;
}
if (!rs->is_running && !options->FetchUselessDescriptors) { if (!rs->is_running && !options->FetchUselessDescriptors) {
/* If we had this router descriptor, we wouldn't even bother using it. /* If we had this router descriptor, we wouldn't even bother using it.
* But, if we want to have a complete list, fetch it anyway. */ * But, if we want to have a complete list, fetch it anyway. */
return 0; return 0;
} }
if (rs->published_on + ROUTER_MAX_AGE < now) {
/* This one is too old to consider. */
return 0;
}
if (rs->published_on + ESTIMATED_PROPAGATION_TIME > now) { if (rs->published_on + ESTIMATED_PROPAGATION_TIME > now) {
/* Most caches probably don't have this descriptor yet. */ /* Most caches probably don't have this descriptor yet. */
return 0; return 0;
@ -3477,15 +3479,15 @@ router_list_client_downloadable(void)
SMARTLIST_FOREACH(routerstatus_list, local_routerstatus_t *, rs, SMARTLIST_FOREACH(routerstatus_list, local_routerstatus_t *, rs,
{ {
routerinfo_t *ri; routerinfo_t *ri;
if (!client_would_use_router(&rs->status, now, options)) { if (router_get_by_descriptor_digest(rs->status.descriptor_digest)) {
/* We have the 'best' descriptor for this router. */
++n_uptodate;
} else if (!client_would_use_router(&rs->status, now, options)) {
/* We wouldn't want this descriptor even if we got it. */ /* We wouldn't want this descriptor even if we got it. */
++n_wouldnt_use; ++n_wouldnt_use;
} else if (digestmap_get(downloading, rs->status.descriptor_digest)) { } else if (digestmap_get(downloading, rs->status.descriptor_digest)) {
/* We're downloading this one now. */ /* We're downloading this one now. */
++n_in_progress; ++n_in_progress;
} else if (router_get_by_descriptor_digest(rs->status.descriptor_digest)) {
/* We have the 'best' descriptor for this router. */
++n_uptodate;
} else if ((ri = router_get_by_digest(rs->status.identity_digest)) && } else if ((ri = router_get_by_digest(rs->status.identity_digest)) &&
ri->cache_info.published_on > rs->status.published_on) { ri->cache_info.published_on > rs->status.published_on) {
/* Oddly, we have a descriptor more recent than the 'best' one, but it /* Oddly, we have a descriptor more recent than the 'best' one, but it