size_t num_subtimers = 0;
GLint64 sum_subtimers = 0;
for (size_t j = i + 1; j < timers.size() && timers[j].level > timers[i].level; ++j) {
size_t num_subtimers = 0;
GLint64 sum_subtimers = 0;
for (size_t j = i + 1; j < timers.size() && timers[j].level > timers[i].level; ++j) {