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/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
****************************************************************************
* (C) 2004 - Rolf Neugebauer - Intel Research Cambridge
****************************************************************************
*
* File: xenperf.c
* Author: Rolf Neugebauer (rolf.neugebauer@intel.com)
* Date: Nov 2004
*
* Description:
*/
#include <xenctrl.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <errno.h>
#include <string.h>
#define X(name) [__HYPERVISOR_##name] = #name
const char *hypercall_name_table[64] =
{
X(set_trap_table),
X(mmu_update),
X(set_gdt),
X(stack_switch),
X(set_callbacks),
X(fpu_taskswitch),
X(sched_op_compat),
X(platform_op),
X(set_debugreg),
X(get_debugreg),
X(update_descriptor),
X(memory_op),
X(multicall),
X(update_va_mapping),
X(set_timer_op),
X(event_channel_op_compat),
X(xen_version),
X(console_io),
X(physdev_op_compat),
X(grant_table_op),
X(vm_assist),
X(update_va_mapping_otherdomain),
X(iret),
X(vcpu_op),
X(set_segment_base),
X(mmuext_op),
X(xsm_op),
X(nmi_op),
X(sched_op),
X(callback_op),
X(xenoprof_op),
X(event_channel_op),
X(physdev_op),
X(hvm_op),
X(sysctl),
X(domctl),
X(kexec_op),
X(arch_0),
X(arch_1),
X(arch_2),
X(arch_3),
X(arch_4),
X(arch_5),
X(arch_6),
X(arch_7),
};
#undef X
int main(int argc, char *argv[])
{
int i, j;
xc_interface *xc_handle;
DECLARE_HYPERCALL_BUFFER(xc_perfc_desc_t, pcd);
DECLARE_HYPERCALL_BUFFER(xc_perfc_val_t, pcv);
xc_perfc_val_t *val;
int num_desc, num_val;
unsigned int sum, reset = 0, full = 0, pretty = 0;
char hypercall_name[36];
if ( argc > 1 )
{
char *p = argv[1];
if ( p[0] == '-' )
{
switch ( p[1] )
{
case 'f':
full = 1;
break;
case 'p':
full = 1;
pretty = 1;
break;
case 'r':
reset = 1;
break;
default:
goto error;
}
}
else
{
error:
printf("%s: [-r]\n", argv[0]);
printf("no args: print digested counters\n");
printf(" -f : print full arrays/histograms\n");
printf(" -p : print full arrays/histograms in pretty format\n");
printf(" -r : reset counters\n");
return 0;
}
}
if ( (xc_handle = xc_interface_open(0,0,0)) == 0 )
{
fprintf(stderr, "Error opening xc interface: %d (%s)\n",
errno, strerror(errno));
return 1;
}
if ( reset )
{
if ( xc_perfc_reset(xc_handle) != 0 )
{
fprintf(stderr, "Error reseting performance counters: %d (%s)\n",
errno, strerror(errno));
return 1;
}
return 0;
}
if ( xc_perfc_query_number(xc_handle, &num_desc, &num_val) != 0 )
{
fprintf(stderr, "Error getting number of perf counters: %d (%s)\n",
errno, strerror(errno));
return 1;
}
pcd = xc_hypercall_buffer_alloc(xc_handle, pcd, sizeof(*pcd) * num_desc);
pcv = xc_hypercall_buffer_alloc(xc_handle, pcv, sizeof(*pcv) * num_val);
if ( pcd == NULL || pcv == NULL)
{
fprintf(stderr, "Could not allocate buffers: %d (%s)\n",
errno, strerror(errno));
exit(-1);
}
if ( xc_perfc_query(xc_handle, HYPERCALL_BUFFER(pcd), HYPERCALL_BUFFER(pcv)) != 0 )
{
fprintf(stderr, "Error getting perf counter: %d (%s)\n",
errno, strerror(errno));
return 1;
}
val = pcv;
for ( i = 0; i < num_desc; i++ )
{
printf ("%-35s ", pcd[i].name);
sum = 0;
for ( j = 0; j < pcd[i].nr_vals; j++ )
sum += val[j];
printf ("T=%10u ", (unsigned int)sum);
if ( full || (pcd[i].nr_vals <= 4) )
{
if ( pretty && (strcmp(pcd[i].name, "hypercalls") == 0) )
{
printf("\n");
for( j = 0; j < pcd[i].nr_vals; j++ )
{
if ( val[j] == 0 )
continue;
if ( (j < 64) && hypercall_name_table[j] )
strncpy(hypercall_name, hypercall_name_table[j],
sizeof(hypercall_name));
else
snprintf(hypercall_name, sizeof(hypercall_name), "[%d]", j);
hypercall_name[sizeof(hypercall_name)-1]='\0';
printf("%-35s ", hypercall_name);
printf("%12u\n", (unsigned int)val[j]);
}
}
else
{
for ( j = 0; j < pcd[i].nr_vals; j++ )
printf(" %10u", (unsigned int)val[j]);
printf("\n");
}
}
else
{
printf("\n");
}
val += pcd[i].nr_vals;
}
xc_hypercall_buffer_free(xc_handle, pcd);
xc_hypercall_buffer_free(xc_handle, pcv);
return 0;
}
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