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break out the big guns: reject dir requests much more

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aggressively. my vidalia bandwidth graph, when rate limiting
to 32kB/s, has the "write" line constantly at 32kB. I can't
imagine what's going on with the relay latency but it can't
be good.


svn:r9366
This commit is contained in:
Roger Dingledine 2007-01-17 01:29:54 +00:00
parent 8662f18102
commit cb472fc550
1 changed files with 6 additions and 0 deletions
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6
src/or/connection.c
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@ -1099,6 +1099,8 @@ retry_all_listeners(int force, smartlist_t *replaced_conns,
extern int global_read_bucket, global_write_bucket;
static int global_write_bucket_empty_last_second = 0;
static int
connection_bucket_round_robin(int base, int priority,
int global_bucket, int conn_bucket)
@ -1184,6 +1186,9 @@ global_write_bucket_low(size_t attempt, int priority)
if (global_write_bucket < (int)attempt)
return 1; /* not enough space no matter the priority */
if (global_write_bucket_empty_last_second)
return 1; /* we're already hitting our limits, no more please */
if (priority == 1) { /* old-style v1 query */
/* Could we handle *two* of these requests within the next two seconds? */
int64_t can_write = (int64_t)global_write_bucket
@ -1279,6 +1284,7 @@ connection_bucket_refill(int seconds_elapsed)
log(LOG_DEBUG, LD_NET,"global_read_bucket now %d.", global_read_bucket);
}
if (global_write_bucket < (int)options->BandwidthBurst) {
global_write_bucket_empty_last_second = global_write_bucket == 0;
global_write_bucket += (int)options->BandwidthRate*seconds_elapsed;
if (global_write_bucket > (int)options->BandwidthBurst)
global_write_bucket = (int)options->BandwidthBurst;