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pid1: add a concurrency limit to slice units

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Fixes: #35862
This commit is contained in:
Lennart Poettering
2025-04-22 18:53:51 +02:00
parent 80653ba925
commit 9ca16f6f18
16 changed files with 337 additions and 17 deletions
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src/systemctl/systemctl-show.c
+28
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@@ -255,6 +255,11 @@ typedef struct UnitStatusInfo {
/* Swap */
const char *what;
/* Slice */
unsigned concurrency_hard_max;
unsigned concurrency_soft_max;
unsigned n_currently_active;
/* CGroup */
uint64_t memory_current;
uint64_t memory_peak;
@@ -711,6 +716,26 @@ static void print_status_info(
putchar('\n');
}
if (endswith(i->id, ".slice")) {
printf(" Act. Units: %u", i->n_currently_active);
if (i->concurrency_soft_max != UINT_MAX || i->concurrency_hard_max != UINT_MAX) {
fputs(" (", stdout);
if (i->concurrency_soft_max != UINT_MAX && i->concurrency_soft_max < i->concurrency_hard_max) {
printf("soft limit: %u", i->concurrency_soft_max);
if (i->concurrency_hard_max != UINT_MAX)
fputs("; ", stdout);
}
if (i->concurrency_hard_max != UINT_MAX)
printf("hard limit: %u", i->concurrency_hard_max);
putchar(')');
}
putchar('\n');
}
if (i->ip_ingress_bytes != UINT64_MAX && i->ip_egress_bytes != UINT64_MAX)
printf(" IP: %s in, %s out\n",
FORMAT_BYTES(i->ip_ingress_bytes),
@@ -2133,6 +2158,9 @@ static int show_one(
{ "SysFSPath", "s", NULL, offsetof(UnitStatusInfo, sysfs_path) },
{ "Where", "s", NULL, offsetof(UnitStatusInfo, where) },
{ "What", "s", NULL, offsetof(UnitStatusInfo, what) },
{ "ConcurrencyHardMax", "u", NULL, offsetof(UnitStatusInfo, concurrency_hard_max) },
{ "ConcurrencySoftMax", "u", NULL, offsetof(UnitStatusInfo, concurrency_soft_max) },
{ "NCurrentlyActive", "u", NULL, offsetof(UnitStatusInfo, n_currently_active) },
{ "MemoryCurrent", "t", NULL, offsetof(UnitStatusInfo, memory_current) },
{ "MemoryPeak", "t", NULL, offsetof(UnitStatusInfo, memory_peak) },
{ "MemorySwapCurrent", "t", NULL, offsetof(UnitStatusInfo, memory_swap_current) },