[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen master] xenperf: omit meaningless trailing zeroes from output
commit af0c5430a82c77432729d61c9b409dd32c477b20 Author: Jan Beulich <jbeulich@xxxxxxxx> AuthorDate: Tue Jan 4 10:21:12 2022 +0100 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Tue Jan 4 10:21:12 2022 +0100 xenperf: omit meaningless trailing zeroes from output There's no point producing a long chain of zeroes when the previously calculated total value was zero. To guard against mistakenly skipping non-zero individual fields, widen "sum" to "unsigned long long". Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Acked-by: Anthony PERARD <anthony.perard@xxxxxxxxxx> --- tools/misc/xenperf.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/tools/misc/xenperf.c b/tools/misc/xenperf.c index a74fd85b71..6e5f8675d4 100644 --- a/tools/misc/xenperf.c +++ b/tools/misc/xenperf.c @@ -86,7 +86,7 @@ int main(int argc, char *argv[]) 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; + unsigned int reset = 0, full = 0, pretty = 0; char hypercall_name[36]; if ( argc > 1 ) @@ -168,14 +168,15 @@ int main(int argc, char *argv[]) val = pcv; for ( i = 0; i < num_desc; i++ ) { + unsigned long long sum = 0; + 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); + printf("T=%10llu ", sum); - if ( full || (pcd[i].nr_vals <= 4) ) + if ( sum && (full || (pcd[i].nr_vals <= 4)) ) { if ( pretty && (strcmp(pcd[i].name, "hypercalls") == 0) ) { -- generated by git-patchbot for /home/xen/git/xen.git#master
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