UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

rue/io: Add blkio.throttle.stat 

Add blkio.throttle.stat to show throttle stat

Signed-off-by: Haisu Wang <haisuwang@tencent.com>
This commit is contained in:
Haisu Wang 2021-08-12 18:40:04 +08:00
parent 1860b51781
commit a65dd3dd13
1 changed files with 37 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
block/blk-throttle.c
View File

@ -1467,6 +1467,39 @@ static u64 tg_read_buffered_write_bps(struct cgroup_subsys_state *css,
}
#endif
static u64 tg_prfill_throttle_stat(struct seq_file *sf, struct blkg_policy_data *pd,
int off)
{
struct throtl_grp *tg = pd_to_tg(pd);
struct throtl_data *td = tg->td;
unsigned long read_slice = tg->slice_end[READ] - tg->slice_start[READ];
unsigned long write_slice = tg->slice_end[WRITE] - tg->slice_start[WRITE];
const char *dname = blkg_dev_name(pd->blkg);
if (!dname || !rue_io_enabled())
return 0;
seq_printf(sf, "%s limit_valid:[%d %d] limit_index=%d iops=%u/%u iops_low=%u/%u iops_max=%u/%u bio_queued=%u/%u slice=%lu/%lu io_disp=[%u/%u]\n",
dname,
td->limit_valid[0], td->limit_valid[1], td->limit_index,
tg_iops_limit(tg, READ), tg_iops_limit(tg, WRITE),
tg->iops[READ][LIMIT_LOW], tg->iops[WRITE][LIMIT_LOW],
tg->iops[READ][LIMIT_MAX], tg->iops[WRITE][LIMIT_MAX],
tg->service_queue.nr_queued[READ], tg->service_queue.nr_queued[WRITE],
read_slice, write_slice,
tg->io_disp[READ], tg->io_disp[WRITE]
);
return 0;
}
static int blkg_print_throttle_stat(struct seq_file *sf, void *v)
{
blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)), tg_prfill_throttle_stat,
&blkcg_policy_throtl, seq_cft(sf)->private, false);
return 0;
}
static struct cftype throtl_legacy_files[] = {
{
.name = "throttle.read_bps_device",
@ -1520,6 +1553,10 @@ static struct cftype throtl_legacy_files[] = {
.max_write_len = 256,
},
#endif
{
.name = "throttle.stat",
.seq_show = blkg_print_throttle_stat,
},
#ifdef CONFIG_PSI
{
.name = "pressure",