---
name: "PAPI_read_ts"
section: "3"
platform: "linux"
package: "libpapi-dev"
version: "7.1.0-5+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/PAPI_read_ts"
---

# PAPI\_read\_ts(3)

Read hardware counters with a timestamp.

## NAME

PAPI\_read\_ts - Read hardware counters with a timestamp.

## SYNOPSIS

## Detailed Description

**C Interface:**

\#include \<**papi.h**\> \
\
  int **PAPI\_read\_ts(int EventSet, long long \*values, long long \*cycles )**;

**PAPI\_read\_ts()** copies the counters of the indicated event set into the provided array. It also places a real-time cycle timestamp into the cycles array.

The counters continue counting after the read.

**PAPI\_read\_ts()** assumes an initialized PAPI library and a properly added event set.

**Parameters**

*EventSet* -- an integer handle for a PAPI Event Set as created by **PAPI\_create\_eventset()** \
 *\*values* -- an array to hold the counter values of the counting events \
 *\*cycles* -- an array to hold the timestamp values

**Return values**

*PAPI\_EINVAL* One or more of the arguments is invalid. \
 *PAPI\_ESYS* A system or C library call failed inside PAPI, see the errno variable. \
 *PAPI\_ENOEVST* The event set specified does not exist.

**Examples**

```

```

**See also**

**PAPI\_read**

**PAPI\_accum**

**PAPI\_start**

**PAPI\_stop**

**PAPI\_reset**

## Author

Generated automatically by Doxygen for PAPI from the source code.