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[lxc-top] Add memory+swap monitoring

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This is patch add memory + swap monitoring from lxc-top tool

Signed-off-by: Alexandr Nevenchanniy <a.nevenchannyy@gmail.com>
This commit is contained in:
Nevenchanniy Aleksandr 2017-05-16 01:46:09 +03:00
parent bf2146ab37
commit 6b6e702ac8
1 changed files with 30 additions and 1 deletions
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31
src/lxc/tools/lxc_top.c
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@ -59,6 +59,8 @@ struct blkio_stats {
struct stats {
uint64_t mem_used;
uint64_t mem_limit;
uint64_t memsw_used;
uint64_t memsw_limit;
uint64_t kmem_used;
uint64_t kmem_limit;
uint64_t cpu_use_nanos;
@ -126,6 +128,7 @@ Options :\n\
c = CPU use\n\
b = Block I/O use\n\
m = Memory use\n\
s = Memory + Swap use\n\
k = Kernel memory use\n\
-r, --reverse sort in reverse (descending) order\n",
.name = ".*",
@ -337,6 +340,8 @@ static void stats_get(struct lxc_container *c, struct ct *ct, struct stats *tota
ct->c = c;
ct->stats->mem_used = stat_get_int(c, "memory.usage_in_bytes");
ct->stats->mem_limit = stat_get_int(c, "memory.limit_in_bytes");
ct->stats->memsw_used = stat_get_int(c, "memory.memsw.usage_in_bytes");
ct->stats->memsw_limit = stat_get_int(c, "memory.memsw.limit_in_bytes");
ct->stats->kmem_used = stat_get_int(c, "memory.kmem.usage_in_bytes");
ct->stats->kmem_limit = stat_get_int(c, "memory.kmem.limit_in_bytes");
ct->stats->cpu_use_nanos = stat_get_int(c, "cpuacct.usage");
@ -348,6 +353,8 @@ static void stats_get(struct lxc_container *c, struct ct *ct, struct stats *tota
if (total) {
total->mem_used = total->mem_used + ct->stats->mem_used;
total->mem_limit = total->mem_limit + ct->stats->mem_limit;
total->memsw_used = total->memsw_used + ct->stats->memsw_used;
total->memsw_limit = total->memsw_limit + ct->stats->memsw_limit;
total->kmem_used = total->kmem_used + ct->stats->kmem_used;
total->kmem_limit = total->kmem_limit + ct->stats->kmem_limit;
total->cpu_use_nanos = total->cpu_use_nanos + ct->stats->cpu_use_nanos;
@ -363,11 +370,15 @@ static void stats_print_header(struct stats *stats)
{
printf(TERMRVRS TERMBOLD);
printf("%-18s %12s %12s %12s %36s %10s", "Container", "CPU", "CPU", "CPU", "BlkIO", "Mem");
if (stats->memsw_used > 0)
printf(" %10s", "MemSw");
if (stats->kmem_used > 0)
printf(" %10s", "KMem");
printf("\n");
printf("%-18s %12s %12s %12s %36s %10s", "Name", "Used", "Sys", "User", "Total(Read/Write)", "Used");
if (stats->memsw_used > 0)
printf(" %10s", "Used");
if (stats->kmem_used > 0)
printf(" %10s", "Used");
printf("\n");
@ -382,6 +393,7 @@ static void stats_print(const char *name, const struct stats *stats,
char iosb_read_str[20];
char iosb_write_str[20];
char mem_used_str[20];
char memsw_used_str[20];
char kmem_used_str[20];
struct timeval time_val;
unsigned long long time_ms;
@ -404,6 +416,11 @@ static void stats_print(const char *name, const struct stats *stats,
(float)stats->cpu_use_user / USER_HZ,
iosb_str,
mem_used_str);
if (total->memsw_used > 0) {
size_humanize(stats->memsw_used, memsw_used_str, sizeof(memsw_used_str));
printf(" %10s", memsw_used_str);
}
if (total->kmem_used > 0) {
size_humanize(stats->kmem_used, kmem_used_str, sizeof(kmem_used_str));
printf(" %10s", kmem_used_str);
@ -462,6 +479,16 @@ static int cmp_memory(const void *sct1, const void *sct2)
return ct1->stats->mem_used < ct2->stats->mem_used;
}
static int cmp_memorysw(const void *sct1, const void *sct2)
{
const struct ct *ct1 = sct1;
const struct ct *ct2 = sct2;
if (sort_reverse)
return ct2->stats->memsw_used < ct1->stats->memsw_used;
return ct1->stats->memsw_used < ct2->stats->memsw_used;
}
static int cmp_kmemory(const void *sct1, const void *sct2)
{
const struct ct *ct1 = sct1;
@ -482,6 +509,7 @@ static void ct_sort(int active)
case 'c': cmp_func = cmp_cpuuse; break;
case 'b': cmp_func = cmp_blkio; break;
case 'm': cmp_func = cmp_memory; break;
case 's': cmp_func = cmp_memorysw; break;
case 'k': cmp_func = cmp_kmemory; break;
}
qsort(ct, active, sizeof(*ct), (int (*)(const void *,const void *))cmp_func);
@ -560,7 +588,7 @@ int main(int argc, char *argv[])
delay = 300;
}
if (batch) {
printf("time_ms,container,cpu_nanos,cpu_sys_userhz,cpu_user_userhz,blkio_bytes,blkio_iops,mem_used_bytes,kernel_mem_used_bytes\n");
printf("time_ms,container,cpu_nanos,cpu_sys_userhz,cpu_user_userhz,blkio_bytes,blkio_iops,mem_used_bytes,memsw_used_bytes,kernel_mem_used_bytes\n");
}
for(;;) {
@ -610,6 +638,7 @@ int main(int argc, char *argv[])
case 'c':
case 'b':
case 'm':
case 's':
case 'k':
if (sort_by == in_char)
sort_reverse ^= 1;