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unix: add linux cachestat system call

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The cachestat system call is an alternative to mincore that offers more
extensive page cache statistics, aiming to enhance scalability. It was added
on Linux 6.5.

Fixes golang/go#61917

Change-Id: If1b6b96f859dd6bf09f1a0c048abfa743a42c540
GitHub-Last-Rev: d18fbb9c48348e5f1f663395647a9ca89a578f60
GitHub-Pull-Request: golang/sys#176
Reviewed-on: https://go-review.googlesource.com/c/sys/+/533242
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Mauri de Souza Meneguzzo
2023-10-10 00:36:02 +00:00
committed by Gopher Robot
parent 8ccaaf02a4
commit 1d9f0b6d88
4 changed files with 41 additions and 0 deletions
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unix/linux/types.go
+17
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@@ -461,6 +461,20 @@ struct my_can_bittiming_const {
struct riscv_hwprobe {};
#endif
// copied from /usr/include/uapi/linux/mman.h
struct cachestat_range {
__u64 off;
__u64 len;
};
struct cachestat {
__u64 nr_cache;
__u64 nr_dirty;
__u64 nr_writeback;
__u64 nr_evicted;
__u64 nr_recently_evicted;
};
*/
import "C"
@@ -5813,3 +5827,6 @@ const (
type SchedAttr C.struct_sched_attr
const SizeofSchedAttr = C.sizeof_struct_sched_attr
type Cachestat_t C.struct_cachestat
type CachestatRange C.struct_cachestat_range