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Portable affinity using hwloc

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This commit is contained in:
Hisham 2016-02-14 19:57:29 -02:00
parent 35657208d7
commit 474d26cea8
6 changed files with 35 additions and 17 deletions
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4
Action.c
View File

@ -271,7 +271,7 @@ static Htop_Reaction actionQuit() {
static Htop_Reaction actionSetAffinity(State* st) {
if (st->pl->cpuCount == 1)
return HTOP_OK;
#if (HAVE_LIBHWLOC || HAVE_NATIVE_AFFINITY)
#if (HAVE_LIBHWLOC || HAVE_LINUX_AFFINITY)
Panel* panel = st->panel;
Process* p = (Process*) Panel_getSelected(panel);
@ -405,7 +405,7 @@ static struct { const char* key; const char* info; } helpRight[] = {
{ .key = " F9 k: ", .info = "kill process/tagged processes" },
{ .key = " F7 ]: ", .info = "higher priority (root only)" },
{ .key = " F8 [: ", .info = "lower priority (+ nice)" },
#if (HAVE_LIBHWLOC || HAVE_NATIVE_AFFINITY)
#if (HAVE_LIBHWLOC || HAVE_LINUX_AFFINITY)
{ .key = " a: ", .info = "set CPU affinity" },
#endif
{ .key = " e: ", .info = "show process environment" },

19
Affinity.c
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@ -10,8 +10,13 @@ in the source distribution for its full text.
#include <stdlib.h>
#ifdef HAVE_LIBHWLOC
#include <hwloc/linux.h>
#elif HAVE_NATIVE_AFFINITY
#include <hwloc.h>
#if __linux__
#define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_THREAD
#else
#define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_PROCESS
#endif
#elif HAVE_LINUX_AFFINITY
#include <sched.h>
#endif
@ -55,7 +60,7 @@ void Affinity_add(Affinity* this, int id) {
Affinity* Affinity_get(Process* proc, ProcessList* pl) {
hwloc_cpuset_t cpuset = hwloc_bitmap_alloc();
bool ok = (hwloc_linux_get_tid_cpubind(pl->topology, proc->pid, cpuset) == 0);
bool ok = (hwloc_get_proc_cpubind(pl->topology, proc->pid, cpuset, HTOP_HWLOC_CPUBIND_FLAG) == 0);
Affinity* affinity = NULL;
if (ok) {
affinity = Affinity_new(pl);
@ -76,15 +81,15 @@ Affinity* Affinity_get(Process* proc, ProcessList* pl) {
bool Affinity_set(Process* proc, Affinity* this) {
hwloc_cpuset_t cpuset = hwloc_bitmap_alloc();
for (int i = 0; i < affinity->used; i++) {
hwloc_bitmap_set(cpuset, affinity->cpus[i]);
for (int i = 0; i < this->used; i++) {
hwloc_bitmap_set(cpuset, this->cpus[i]);
}
bool ok = (hwloc_linux_set_tid_cpubind(this->pl->topology, proc->pid, cpuset) == 0);
bool ok = (hwloc_set_proc_cpubind(this->pl->topology, proc->pid, cpuset, HTOP_HWLOC_CPUBIND_FLAG) == 0);
hwloc_bitmap_free(cpuset);
return ok;
}
#elif HAVE_NATIVE_AFFINITY
#elif HAVE_LINUX_AFFINITY
Affinity* Affinity_get(Process* proc, ProcessList* pl) {
cpu_set_t cpuset;

9
Affinity.h
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@ -10,7 +10,12 @@ in the source distribution for its full text.
*/
#ifdef HAVE_LIBHWLOC
#elif HAVE_NATIVE_AFFINITY
#if __linux__
#define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_THREAD
#else
#define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_PROCESS
#endif
#elif HAVE_LINUX_AFFINITY
#endif
#include "Process.h"
@ -36,7 +41,7 @@ Affinity* Affinity_get(Process* proc, ProcessList* pl);
bool Affinity_set(Process* proc, Affinity* this);
#elif HAVE_NATIVE_AFFINITY
#elif HAVE_LINUX_AFFINITY
Affinity* Affinity_get(Process* proc, ProcessList* pl);

4
ProcessList.c
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@ -22,6 +22,10 @@ in the source distribution for its full text.
#include "Process.h"
#include "Settings.h"
#ifdef HAVE_LIBHWLOC
#include <hwloc.h>
#endif
#ifndef MAX_NAME
#define MAX_NAME 128
#endif

4
ProcessList.h
View File

@ -16,6 +16,10 @@ in the source distribution for its full text.
#include "Process.h"
#include "Settings.h"
#ifdef HAVE_LIBHWLOC
#include <hwloc.h>
#endif
#ifndef MAX_NAME
#define MAX_NAME 128
#endif

12
configure.ac
View File

@ -211,8 +211,8 @@ if test "$my_htop_platform" = "openbsd"; then
AC_CHECK_LIB([kvm], [kvm_open], [], [missing_libraries="$missing_libraries libkvm"])
fi
AC_ARG_ENABLE(native_affinity, [AC_HELP_STRING([--enable-native-affinity], [enable native sched_setaffinity and sched_getaffinity for affinity support, disables hwloc])], ,enable_native_affinity="yes")
if test "x$enable_native_affinity" = xyes -a "x$cross_compiling" = xno; then
AC_ARG_ENABLE(linux_affinity, [AC_HELP_STRING([--enable-linux-affinity], [enable Linux sched_setaffinity and sched_getaffinity for affinity support, disables hwloc])], ,enable_linux_affinity="yes")
if test "x$enable_linux_affinity" = xyes -a "x$cross_compiling" = xno; then
AC_MSG_CHECKING([for usable sched_setaffinity])
AC_RUN_IFELSE([
AC_LANG_PROGRAM([[
@ -225,17 +225,17 @@ if test "x$enable_native_affinity" = xyes -a "x$cross_compiling" = xno; then
if (errno == ENOSYS) return 1;
]])],
[AC_MSG_RESULT([yes])],
[enable_native_affinity=no
[enable_linux_affinity=no
AC_MSG_RESULT([no])])
fi
if test "x$enable_native_affinity" = xyes; then
AC_DEFINE(HAVE_NATIVE_AFFINITY, 1, [Define if native sched_setaffinity and sched_getaffinity are to be used.])
if test "x$enable_linux_affinity" = xyes; then
AC_DEFINE(HAVE_LINUX_AFFINITY, 1, [Define if Linux sched_setaffinity and sched_getaffinity are to be used.])
fi
AC_ARG_ENABLE(hwloc, [AC_HELP_STRING([--enable-hwloc], [enable hwloc support for CPU affinity])],, enable_hwloc="no")
if test "x$enable_hwloc" = xyes
then
AC_CHECK_LIB([hwloc], [hwloc_linux_get_tid_cpubind], [], [missing_libraries="$missing_libraries libhwloc"])
AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [missing_libraries="$missing_libraries libhwloc"])
AC_CHECK_HEADERS([hwloc.h],[:], [missing_headers="$missing_headers $ac_header"])
fi