# shm\_info
- [Overview](#section2048856853165637)
- [Summary](#section830881613165637)
- [Data Fields](#pub-attribs)
- [Details](#section337996501165637)
- [Field](#section1475747661165637)
- [\_\_swap\_attempts](#a994182b446373fe20ba4392fac1608df)
- [\_\_swap\_successes](#a612f7346d1f84cd756fa9ee4ba68cc14)
- [\_\_used\_ids](#aa2de99231240b0e9e36cb1720bba0ef5)
- [shm\_rss](#a677b785fd7c65a72a2a3e5c361ced94f)
- [shm\_swp](#a55655441c2480741960372b4ae5aa76b)
- [shm\_tot](#a68b58013a245638488a89c6026a757a5)
## **Overview**
**Related Modules:**
[MEM](MEM.md)
**Description:**
Describes system resource information about the shared memory.
## **Summary**
## Data Fields
## **Details**
## **Field **
## \_\_swap\_attempts
```
unsigned long shm_info::__swap_attempts
```
**Description:**
Number of swap attempts
## \_\_swap\_successes
```
unsigned long shm_info::__swap_successes
```
**Description:**
Number of successful swap attempts
## \_\_used\_ids
```
int shm_info::__used_ids
```
**Description:**
Number of existing shared memory segments
## shm\_rss
```
unsigned long shm_info::shm_rss
```
**Description:**
Number of resident shared memory pages
## shm\_swp
```
unsigned long shm_info::shm_swp
```
**Description:**
Number of shared memory pages in the swap partition
## shm\_tot
```
unsigned long shm_info::shm_tot
```
**Description:**
Total number of shared memory pages