Mercurial > hg > nginx-quic
changeset 3967:83e41f6f6d96
The cache loader performs two tasks: inserting cache objects in inactivity
list and evaluating total cache size. Reading just directory is enough for
this purpose. Elimination of reading cache files saves at least one disk I/O
operation per file.
Preparation for elimination of reading cache files by cache loader:
removing dependencies on the reading:
*) cache node valid_sec and valid_msec are used only for caching errors;
*) upstream buffer size can be used instead of cache node body_start.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Sun, 24 Jul 2011 16:47:31 +0000 |
parents | 9c425f22ea36 |
children | d7ed8b8b0cdd |
files | src/http/ngx_http_file_cache.c |
diffstat | 1 files changed, 6 insertions(+), 11 deletions(-) [+] |
line wrap: on
line diff
--- a/src/http/ngx_http_file_cache.c +++ b/src/http/ngx_http_file_cache.c @@ -533,7 +533,9 @@ ngx_http_file_cache_exists(ngx_http_file if (fcn->exists || fcn->uses >= c->min_uses) { c->exists = fcn->exists; - c->body_start = fcn->body_start; + if (c->body_start) { + c->body_start = fcn->body_start; + } rc = NGX_OK; @@ -1365,9 +1367,6 @@ ngx_http_file_cache_add_file(ngx_tree_ct } else { c.uniq = ngx_file_uniq(&fi); - c.valid_sec = h.valid_sec; - c.valid_msec = h.valid_msec; - c.body_start = h.body_start; c.length = ngx_file_size(&fi); c.fs_size = (ngx_file_fs_size(&fi) + cache->bsize - 1) / cache->bsize; } @@ -1377,10 +1376,6 @@ ngx_http_file_cache_add_file(ngx_tree_ct ngx_close_file_n " \"%s\" failed", name->data); } - if (c.body_start == 0) { - return NGX_ERROR; - } - p = &name->data[name->len - 2 * NGX_HTTP_CACHE_KEY_LEN]; for (i = 0; i < NGX_HTTP_CACHE_KEY_LEN; i++) { @@ -1426,14 +1421,14 @@ ngx_http_file_cache_add(ngx_http_file_ca fcn->uses = 1; fcn->count = 0; - fcn->valid_msec = c->valid_msec; + fcn->valid_msec = 0; fcn->error = 0; fcn->exists = 1; fcn->updating = 0; fcn->deleting = 0; fcn->uniq = c->uniq; - fcn->valid_sec = c->valid_sec; - fcn->body_start = c->body_start; + fcn->valid_sec = 0; + fcn->body_start = 0; fcn->fs_size = c->fs_size; cache->sh->size += c->fs_size;