diff --git a/ydb/apps/dstool/lib/dstool_cmd_cluster_workload_run.py b/ydb/apps/dstool/lib/dstool_cmd_cluster_workload_run.py
index c453988726d1..67c5bf6c69b0 100644
--- a/ydb/apps/dstool/lib/dstool_cmd_cluster_workload_run.py
+++ b/ydb/apps/dstool/lib/dstool_cmd_cluster_workload_run.py
@@ -28,20 +28,8 @@ def add_options(p):
     p.add_argument('--enable-hard-switch-piles', action='store_true', help='Enable hard switch pile with setting PRIMARY')
     p.add_argument('--enable-disconnect-piles', action='store_true', help='Enable disconnect pile')
     p.add_argument('--fixed-pile-for-disconnect', type=int, help='Pile to disconnect')
-
-
-def fetch_start_time_map(base_config):
-    start_time_map = {}
-    for node_id in {pdisk.NodeId for pdisk in base_config.PDisk}:
-        r = common.fetch_json_info('sysinfo', [node_id])
-        if len(r) != 1:
-            return None
-        k, v = r.popitem()
-        assert k == node_id
-        if 'StartTime' not in v:
-            return None
-        start_time_map[node_id] = int(v['StartTime'])
-    return start_time_map
+    p.add_argument('--weight-restarts', type=float, default=1.0, help='weight for restart action')
+    p.add_argument('--weight-kill-tablets', type=float, default=1.0, help='weight for kill tablets action')
 
 
 def make_pdisk_key_config(pdisk_keys, node_id):
@@ -97,8 +85,6 @@ def do(args):
             base_config = common.fetch_base_config()
             vslot_map = common.build_vslot_map(base_config)
             node_fqdn_map = common.build_node_fqdn_map(base_config)
-            if args.enable_pdisk_encryption_keys_changes or not args.disable_restarts:
-                start_time_map = fetch_start_time_map(base_config)
         except Exception:
             if config_retries is None:
                 config_retries = 3
@@ -108,7 +94,21 @@ def do(args):
                 config_retries -= 1
             continue
 
-        tablets = common.fetch_json_info('tabletinfo') if args.enable_kill_tablets or args.enable_kill_blob_depot else {}
+        if args.enable_kill_tablets or args.enable_kill_blob_depot:
+            tablets = {
+                int(tablet['TabletId']) : tablet
+                for tablet in common.fetch('viewer/json/tabletinfo', dict(enums=1)).get('TabletStateInfo', [])
+            }
+        else:
+            tablets = {}
+        sysinfo = {
+            int(node['NodeId']): node
+            for node in common.fetch('viewer/json/sysinfo', dict(fields_required=-1, enums=1), cache=False).get('SystemStateInfo', [])
+        }
+        start_time_map = {
+            int(node['NodeId']): int(node['StartTime'])
+            for node in sysinfo.values()
+        }
 
         config_retries = None
 
@@ -187,11 +187,10 @@ def match(x):
             return True
 
         def do_restart(node_id):
-            host = node_fqdn_map[node_id]
+            node = sysinfo[node_id]
             if args.enable_pdisk_encryption_keys_changes:
                 update_pdisk_key_config(node_fqdn_map, pdisk_keys, node_id)
-            subprocess.call(['ssh', host, 'sudo', 'killall', '-%s' % args.kill_signal, 'kikimr'])
-            subprocess.call(['ssh', host, 'sudo', 'killall', '-%s' % args.kill_signal, 'ydbd'])
+            subprocess.call(['ssh', node['Host'], 'sudo', 'kill', '-%s' % args.kill_signal, node['PID']])
             if args.enable_pdisk_encryption_keys_changes:
                 remove_old_pdisk_keys(pdisk_keys, pdisk_key_versions, node_id)
 
@@ -316,9 +315,9 @@ def do_connect_pile(pile_id, pile_id_to_hosts):
         possible_actions = []
 
         if args.enable_kill_tablets:
-            possible_actions.append(('kill tablet', (do_kill_tablet,)))
+            possible_actions.append((args.weight_kill_tablets, 'kill tablet', (do_kill_tablet,)))
         if args.enable_kill_blob_depot:
-            possible_actions.append(('kill blob depot', (do_kill_blob_depot,)))
+            possible_actions.append((1.0, 'kill blob depot', (do_kill_blob_depot,)))
 
         evicts = []
         wipes = []
@@ -361,19 +360,19 @@ def pick(v):
             action[0](*action[1:])
 
         if evicts:
-            possible_actions.append(('evict', (pick, evicts)))
+            possible_actions.append((1.0, 'evict', (pick, evicts)))
         if wipes:
-            possible_actions.append(('wipe', (pick, wipes)))
+            possible_actions.append((1.0, 'wipe', (pick, wipes)))
         if readonlies:
-            possible_actions.append(('readonly', (pick, readonlies)))
+            possible_actions.append((1.0, 'readonly', (pick, readonlies)))
         if unreadonlies:
-            possible_actions.append(('un-readonly', (pick, unreadonlies)))
+            possible_actions.append((1.0, 'un-readonly', (pick, unreadonlies)))
         if pdisk_restarts:
-            possible_actions.append(('restart-pdisk', (pick, pdisk_restarts)))
+            possible_actions.append((1.0, 'restart-pdisk', (pick, pdisk_restarts)))
         if make_pdisks_readonly:
-            possible_actions.append(('make-pdisks-readonly', (pick, make_pdisks_readonly)))
+            possible_actions.append((1.0, 'make-pdisks-readonly', (pick, make_pdisks_readonly)))
         if make_pdisks_not_readonly:
-            possible_actions.append(('make-pdisks-not-readonly', (pick, make_pdisks_not_readonly)))
+            possible_actions.append((1.0, 'make-pdisks-not-readonly', (pick, make_pdisks_not_readonly)))
 
         restarts = []
 
@@ -385,12 +384,12 @@ def pick(v):
                 nodes_to_restart = nodes_to_restart[:node_count//2]
                 for node_id in nodes_to_restart:
                     if args.enable_pdisk_encryption_keys_changes:
-                        possible_actions.append(('add new pdisk key to node with id: %d' % node_id, (do_add_pdisk_key, node_id)))
+                        possible_actions.append((1.0, 'add new pdisk key to node with id: %d' % node_id, (do_add_pdisk_key, node_id)))
                     if not args.disable_restarts:
                         restarts.append(('restart node with id: %d' % node_id, (do_restart, node_id)))
 
         if restarts:
-            possible_actions.append(('restart', (pick, restarts)))
+            possible_actions.append((args.weight_restarts, 'restart', (pick, restarts)))
 
         has_pile_operations = args.enable_soft_switch_piles or args.enable_hard_switch_piles or args.enable_disconnect_piles
         if has_pile_operations:
@@ -418,14 +417,14 @@ def pick(v):
             can_hard_switch = (len(synchronized_piles) + len(promoted_piles) > 0)
 
             if args.enable_soft_switch_piles and can_soft_switch:
-                possible_actions.append(('soft-switch-pile', (do_soft_switch_pile, random.choice(synchronized_piles))))
+                possible_actions.append((1.0, 'soft-switch-pile', (do_soft_switch_pile, random.choice(synchronized_piles))))
             if args.enable_hard_switch_piles and can_hard_switch:
-                possible_actions.append(('hard-switch-pile', (do_hard_switch_pile, random.choice(promoted_piles + synchronized_piles), [primary_pile] + promoted_piles + synchronized_piles)))
+                possible_actions.append((1.0, 'hard-switch-pile', (do_hard_switch_pile, random.choice(promoted_piles + synchronized_piles), [primary_pile] + promoted_piles + synchronized_piles)))
             if len(disconnected_piles) > 0:
-                possible_actions.append(('connect-pile', (do_connect_pile, random.choice(disconnected_piles), pile_id_to_endpoints)))
+                possible_actions.append((1.0, 'connect-pile', (do_connect_pile, random.choice(disconnected_piles), pile_id_to_endpoints)))
             if args.enable_disconnect_piles and len(synchronized_piles) > 0:
                 pile_to_disconnect = args.fixed_pile_for_disconnect if args.fixed_pile_for_disconnect is not None else random.choice([primary_pile] + synchronized_piles)
-                possible_actions.append(('disconnect-pile', (do_disconnect_pile, pile_to_disconnect, pile_id_to_endpoints)))
+                possible_actions.append((1.0, 'disconnect-pile', (do_disconnect_pile, pile_to_disconnect, pile_id_to_endpoints)))
 
         if not possible_actions:
             common.print_if_not_quiet(args, 'Waiting for the next round...', file=sys.stdout)
@@ -434,7 +433,7 @@ def pick(v):
 
         ################################################################################################################
 
-        action_name, action = random.choice(possible_actions)
+        (_, action_name, action), = random.choices(possible_actions, weights=[w for w, _, _ in possible_actions])
         print('%s %s' % (action_name, datetime.now(timezone.utc).strftime('%Y-%m-%dT%H:%M:%S')))
 
         try:
diff --git a/ydb/core/protos/node_whiteboard.proto b/ydb/core/protos/node_whiteboard.proto
index bf1686978236..ca8c9dadb6bc 100644
--- a/ydb/core/protos/node_whiteboard.proto
+++ b/ydb/core/protos/node_whiteboard.proto
@@ -367,6 +367,7 @@ message TSystemStateInfo {
     optional uint64 NetworkWriteThroughput = 42;
     optional uint32 RealNumberOfCpus = 43; // number of cpus without cgroups limitations
     repeated TSystemThreadInfo Threads = 44;
+    optional uint64 PID = 45;
 }
 
 message TEvSystemStateRequest {
diff --git a/ydb/core/tablet/node_whiteboard.cpp b/ydb/core/tablet/node_whiteboard.cpp
index 16328eaa0581..65e88302d519 100644
--- a/ydb/core/tablet/node_whiteboard.cpp
+++ b/ydb/core/tablet/node_whiteboard.cpp
@@ -16,6 +16,7 @@
 #include <ydb/core/util/tuples.h>
 
 #include <util/string/split.h>
+#include <util/system/getpid.h>
 #include <contrib/libs/protobuf/src/google/protobuf/util/message_differencer.h>
 
 using namespace NActors;
@@ -65,6 +66,7 @@ class TNodeWhiteboardService : public TActorBootstrapped<TNodeWhiteboardService>
         }
 
         SystemStateInfo.SetStartTime(ctx.Now().MilliSeconds());
+        SystemStateInfo.SetPID(GetPID());
         ctx.Send(ctx.SelfID, new TEvPrivate::TEvUpdateRuntimeStats());
 
         auto utils = NKikimr::GetServiceCounters(NKikimr::AppData()->Counters, "utils");