diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt
index 5e438a7fdc1..570c36e07c1 100644
--- a/Documentation/git-status.txt
+++ b/Documentation/git-status.txt
@@ -457,6 +457,65 @@ during the write may conflict with other simultaneous processes, causing
 them to fail. Scripts running `status` in the background should consider
 using `git --no-optional-locks status` (see linkgit:git[1] for details).
 
+UNTRACKED FILES AND STATUS SPEED
+--------------------------------
+
+`git status` can be very slow in large worktrees if/when it
+needs to search for untracked files and directories. There are
+many configuration options available to speed this up by either
+avoiding the work or making use of cached results from previous
+Git commands. There is no single optimum set of settings right
+for everyone.  Here is a brief summary of the relevant options
+to help you choose which is right for you.
+
+* First, you may want to run `git status` again. Your current
+	configuration may already be caching `git status` results,
+	so it could be faster on subsequent runs.
+
+* The `--untracked-files=no` flag or the
+	`status.showUntrackedfiles=false` config (see above for both) :
+	indicate that `git status` should not report untracked
+	files. This is the fastest option. `git status` will not list
+	the untracked files, so you need to be careful to remember if
+	you create any new files and manually `git add` them.
+
+* `advice.statusUoption=false` (see linkgit:git-config[1]) :
+	this config option disables a warning message when the search
+	for untracked files takes longer than desired. In some large
+	repositories, this message may appear frequently and not be a
+	helpful signal.
+
+* `core.untrackedCache=true` (see linkgit:git-update-index[1]) :
+	enable the untracked cache feature and only search directories
+	that have been modified since the previous `git status` command.
+	Git remembers the set of untracked files within each directory
+	and assumes that if a directory has not been modified, then
+	the set of untracked files within has not changed.  This is much
+	faster than enumerating the contents of every directory, but still
+	not without cost, because Git still has to search for the set of
+	modified directories. The untracked cache is stored in the
+	`.git/index` file. The reduced cost of searching for untracked
+	files is offset slightly by the increased size of the index and
+	the cost of keeping it up-to-date. That reduced search time is
+	usually worth the additional size.
+
+* `core.untrackedCache=true` and `core.fsmonitor=true` or
+	`core.fsmonitor=<hook_command_pathname>` (see
+	linkgit:git-update-index[1]) : enable both the untracked cache
+	and FSMonitor features and only search directories that have
+	been modified since the previous `git status` command.  This
+	is faster than using just the untracked cache alone because
+	Git can also avoid searching for modified directories.  Git
+	only has to enumerate the exact set of directories that have
+	changed recently. While the FSMonitor feature can be enabled
+	without the untracked cache, the benefits are greatly reduced
+	in that case.
+
+Note that after you turn on the untracked cache and/or FSMonitor
+features it may take a few `git status` commands for the various
+caches to warm up before you see improved command times.  This is
+normal.
+
 SEE ALSO
 --------
 linkgit:gitignore[5]
diff --git a/t/t7065-wtstatus-slow.sh b/t/t7065-wtstatus-slow.sh
new file mode 100755
index 00000000000..6733e8ba36b
--- /dev/null
+++ b/t/t7065-wtstatus-slow.sh
@@ -0,0 +1,72 @@
+#!/bin/sh
+
+test_description='test status when slow untracked files'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+GIT_TEST_UF_DELAY_WARNING=1
+export GIT_TEST_UF_DELAY_WARNING
+
+. ./test-lib.sh
+
+test_expect_success setup '
+	cat >.gitignore <<-\EOF &&
+	/actual
+	/expected
+	/out
+	EOF
+	git add .gitignore &&
+	git commit -m "Add .gitignore"
+'
+
+test_expect_success 'when core.untrackedCache and fsmonitor are unset' '
+	test_unconfig core.untrackedCache &&
+	test_unconfig core.fsmonitor &&
+	git status >out &&
+	sed "s/[0-9]\.[0-9][0-9]/X/g" out >actual &&
+	cat >expected <<-\EOF &&
+	On branch main
+
+	It took X seconds to enumerate untracked files.
+	See '"'"'git help status'"'"' for information on how to improve this.
+
+	nothing to commit, working tree clean
+	EOF
+	test_cmp expected actual
+'
+
+test_expect_success 'when core.untrackedCache true, but not fsmonitor' '
+	test_config core.untrackedCache true &&
+	test_unconfig core.fsmonitor &&
+	git status >out &&
+	sed "s/[0-9]\.[0-9][0-9]/X/g" out >actual &&
+	cat >expected <<-\EOF &&
+	On branch main
+
+	It took X seconds to enumerate untracked files.
+	See '"'"'git help status'"'"' for information on how to improve this.
+
+	nothing to commit, working tree clean
+	EOF
+	test_cmp expected actual
+'
+
+test_expect_success 'when core.untrackedCache true, and fsmonitor' '
+	test_config core.untrackedCache true &&
+	test_config core.fsmonitor true &&
+	git status >out &&
+	sed "s/[0-9]\.[0-9][0-9]/X/g" out >actual &&
+	cat >expected <<-\EOF &&
+	On branch main
+
+	It took X seconds to enumerate untracked files,
+	but the results were cached, and subsequent runs may be faster.
+	See '"'"'git help status'"'"' for information on how to improve this.
+
+	nothing to commit, working tree clean
+	EOF
+	test_cmp expected actual
+'
+
+test_done
diff --git a/wt-status.c b/wt-status.c
index 5813174896c..1f6d64e759f 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -18,8 +18,10 @@
 #include "worktree.h"
 #include "lockfile.h"
 #include "sequencer.h"
+#include "fsmonitor-settings.h"
 
 #define AB_DELAY_WARNING_IN_MS (2 * 1000)
+#define UF_DELAY_WARNING_IN_MS (2 * 1000)
 
 static const char cut_line[] =
 "------------------------ >8 ------------------------\n";
@@ -1205,6 +1207,13 @@ static void wt_longstatus_print_tracking(struct wt_status *s)
 	strbuf_release(&sb);
 }
 
+static int uf_was_slow(uint32_t untracked_in_ms)
+{
+	if (getenv("GIT_TEST_UF_DELAY_WARNING"))
+		untracked_in_ms += UF_DELAY_WARNING_IN_MS + 1;
+	return UF_DELAY_WARNING_IN_MS < untracked_in_ms;
+}
+
 static void show_merge_in_progress(struct wt_status *s,
 				   const char *color)
 {
@@ -1814,6 +1823,7 @@ static void wt_longstatus_print(struct wt_status *s)
 {
 	const char *branch_color = color(WT_STATUS_ONBRANCH, s);
 	const char *branch_status_color = color(WT_STATUS_HEADER, s);
+	enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(s->repo);
 
 	if (s->branch) {
 		const char *on_what = _("On branch ");
@@ -1870,13 +1880,21 @@ static void wt_longstatus_print(struct wt_status *s)
 		wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
 		if (s->show_ignored_mode)
 			wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
-		if (advice_enabled(ADVICE_STATUS_U_OPTION) && 2000 < s->untracked_in_ms) {
+		if (advice_enabled(ADVICE_STATUS_U_OPTION) && uf_was_slow(s->untracked_in_ms)) {
 			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
+			if (fsm_mode > FSMONITOR_MODE_DISABLED) {
+				status_printf_ln(s, GIT_COLOR_NORMAL,
+						_("It took %.2f seconds to enumerate untracked files,\n"
+						"but the results were cached, and subsequent runs may be faster."),
+						s->untracked_in_ms / 1000.0);
+			} else {
+				status_printf_ln(s, GIT_COLOR_NORMAL,
+						_("It took %.2f seconds to enumerate untracked files."),
+						s->untracked_in_ms / 1000.0);
+			}
 			status_printf_ln(s, GIT_COLOR_NORMAL,
-					 _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
-					   "may speed it up, but you have to be careful not to forget to add\n"
-					   "new files yourself (see 'git help status')."),
-					 s->untracked_in_ms / 1000.0);
+					_("See 'git help status' for information on how to improve this."));
+			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 		}
 	} else if (s->committable)
 		status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
