From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 22 Mar 2019 11:18:31 +0000 (+0100)
Subject: systemctl: show IO stats in 'status' output
X-Git-Tag: v243-rc1~522^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7a5de3f9518859aaeb8bcf9fdcea488a04cc57ed;p=thirdparty%2Fsystemd.git

systemctl: show IO stats in 'status' output
---

diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 92bbcfd2765..cfcc4f6874a 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -4125,9 +4125,10 @@ typedef struct UnitStatusInfo {
         uint64_t cpu_usage_nsec;
         uint64_t tasks_current;
         uint64_t tasks_max;
-
         uint64_t ip_ingress_bytes;
         uint64_t ip_egress_bytes;
+        uint64_t io_read_bytes;
+        uint64_t io_write_bytes;
 
         LIST_HEAD(ExecStatusInfo, exec);
 } UnitStatusInfo;
@@ -4482,6 +4483,14 @@ static void print_status_info(
                         format_bytes(buf_out, sizeof(buf_out), i->ip_egress_bytes));
         }
 
+        if (i->io_read_bytes != UINT64_MAX && i->io_write_bytes != UINT64_MAX) {
+                char buf_in[FORMAT_BYTES_MAX], buf_out[FORMAT_BYTES_MAX];
+
+                printf("       IO: %s read, %s written\n",
+                        format_bytes(buf_in, sizeof(buf_in), i->io_read_bytes),
+                        format_bytes(buf_out, sizeof(buf_out), i->io_write_bytes));
+        }
+
         if (i->tasks_current != (uint64_t) -1) {
                 printf("    Tasks: %" PRIu64, i->tasks_current);
 
@@ -5490,6 +5499,8 @@ static int show_one(
                 { "TasksMax",                       "t",              NULL,           offsetof(UnitStatusInfo, tasks_max)                         },
                 { "IPIngressBytes",                 "t",              NULL,           offsetof(UnitStatusInfo, ip_ingress_bytes)                  },
                 { "IPEgressBytes",                  "t",              NULL,           offsetof(UnitStatusInfo, ip_egress_bytes)                   },
+                { "IOReadBytes",                    "t",              NULL,           offsetof(UnitStatusInfo, io_read_bytes)                     },
+                { "IOWriteBytes",                   "t",              NULL,           offsetof(UnitStatusInfo, io_write_bytes)                    },
                 { "ExecStartPre",                   "a(sasbttttuii)", map_exec,       0                                                           },
                 { "ExecStart",                      "a(sasbttttuii)", map_exec,       0                                                           },
                 { "ExecStartPost",                  "a(sasbttttuii)", map_exec,       0                                                           },
@@ -5514,6 +5525,8 @@ static int show_one(
                 .tasks_max = (uint64_t) -1,
                 .ip_ingress_bytes = (uint64_t) -1,
                 .ip_egress_bytes = (uint64_t) -1,
+                .io_read_bytes = UINT64_MAX,
+                .io_write_bytes = UINT64_MAX,
         };
         char **pp;
         int r;