#include "cache.h"
 #include "pathspec.h"
 #include "dir.h"
+#include "fsmonitor.h"
 
 #ifdef NO_PTHREADS
 static void preload_index(struct index_state *index,
        struct thread_data *p = _data;
        struct index_state *index = p->index;
        struct cache_entry **cep = index->cache + p->offset;
-       struct cache_def cache;
+       struct cache_def cache = CACHE_DEF_INIT;
 
-       memset(&cache, 0, sizeof(cache));
        nr = p->nr;
        if (nr + p->offset > index->cache_nr)
                nr = index->cache_nr - p->offset;
                        continue;
                if (ce_uptodate(ce))
                        continue;
+               if (ce_skip_worktree(ce))
+                       continue;
+               if (ce->ce_flags & CE_FSMONITOR_VALID)
+                       continue;
                if (!ce_path_match(ce, &p->pathspec, NULL))
                        continue;
                if (threaded_has_symlink_leading_path(&cache, ce->name, ce_namelen(ce)))
                        continue;
                if (lstat(ce->name, &st))
                        continue;
-               if (ie_match_stat(index, ce, &st, CE_MATCH_RACY_IS_DIRTY))
+               if (ie_match_stat(index, ce, &st, CE_MATCH_RACY_IS_DIRTY|CE_MATCH_IGNORE_FSMONITOR))
                        continue;
                ce_mark_uptodate(ce);
+               mark_fsmonitor_valid(ce);
        } while (--nr > 0);
+       cache_def_clear(&cache);
        return NULL;
 }
 
 {
        int threads, i, work, offset;
        struct thread_data data[MAX_PARALLEL];
+       uint64_t start = getnanotime();
 
        if (!core_preload_index)
                return;
 
        threads = index->cache_nr / THREAD_COST;
+       if ((index->cache_nr > 1) && (threads < 2) && getenv("GIT_FORCE_PRELOAD_TEST"))
+               threads = 2;
        if (threads < 2)
                return;
        if (threads > MAX_PARALLEL)
                if (pthread_join(p->pthread, NULL))
                        die("unable to join threaded lstat");
        }
+       trace_performance_since(start, "preload index");
 }
 #endif