Initial changes for new metaspace. Only tested for Linux x64.
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#ifndef SHARE_MEMORY_METASPACE_METASPACEREPORT_HPP
#define SHARE_MEMORY_METASPACE_METASPACEREPORT_HPP
#include "memory/allocation.hpp"
namespace metaspace {
class MetaspaceReporter : public AllStatic {
public:
// Flags for print_report().
enum ReportFlag {
// Show usage by class loader.
rf_show_loaders = (1 << 0),
// Breaks report down by chunk type (small, medium, ...).
rf_break_down_by_chunktype = (1 << 1),
// Breaks report down by space type (anonymous, reflection, ...).
rf_break_down_by_spacetype = (1 << 2),
// Print details about the underlying virtual spaces.
rf_show_vslist = (1 << 3),
// Print metaspace map.
rf_show_vsmap = (1 << 4),
// If show_loaders: show loaded classes for each loader.
rf_show_classes = (1 << 5)
};
// This will print out a basic metaspace usage report but
// unlike print_report() is guaranteed not to lock or to walk the CLDG.
static void print_basic_report(outputStream* st, size_t scale);
// Prints a report about the current metaspace state.
// Optional parts can be enabled via flags.
// Function will walk the CLDG and will lock the expand lock; if that is not
// convenient, use print_basic_report() instead.
static void print_report(outputStream* out, size_t scale = 0, int flags = 0);
};
} // namespace metaspace
#endif // SHARE_MEMORY_METASPACE_METASPACEREPORT_HPP