Project import
diff --git a/procmem/Android.mk b/procmem/Android.mk
new file mode 100644
index 0000000..b7fba56
--- /dev/null
+++ b/procmem/Android.mk
@@ -0,0 +1,23 @@
+# Copyright (C) 2008 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := procmem.c
+LOCAL_SHARED_LIBRARIES := libpagemap
+LOCAL_MODULE := procmem
+LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
+LOCAL_MODULE_TAGS := debug
+include $(BUILD_EXECUTABLE)
diff --git a/procmem/MODULE_LICENSE_APACHE2 b/procmem/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/procmem/MODULE_LICENSE_APACHE2
diff --git a/procmem/NOTICE b/procmem/NOTICE
new file mode 100644
index 0000000..c5b1efa
--- /dev/null
+++ b/procmem/NOTICE
@@ -0,0 +1,190 @@
+
+ Copyright (c) 2005-2008, The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
diff --git a/procmem/procmem.c b/procmem/procmem.c
new file mode 100644
index 0000000..17a7212
--- /dev/null
+++ b/procmem/procmem.c
@@ -0,0 +1,323 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <pagemap/pagemap.h>
+
+/* Information about a single mapping */
+struct map_info {
+ pm_map_t *map;
+ pm_memusage_t usage;
+ /* page counts */
+ unsigned long shared_clean;
+ unsigned long shared_dirty;
+ unsigned long private_clean;
+ unsigned long private_dirty;
+};
+
+/* display the help screen */
+static void usage(const char *cmd);
+
+/* qsort compare function to compare maps by PSS */
+int comp_pss(const void *a, const void *b);
+
+int main(int argc, char *argv[]) {
+ pid_t pid;
+
+ /* libpagemap context */
+ pm_kernel_t *ker;
+ int pagesize; /* cached for speed */
+ pm_process_t *proc;
+
+ /* maps and such */
+ pm_map_t **maps; size_t num_maps;
+
+ struct map_info **mis = NULL;
+ struct map_info *mi;
+
+ /* pagemap information */
+ uint64_t *pagemap; size_t num_pages;
+ uint64_t mapentry;
+ uint64_t count, flags;
+
+ /* totals */
+ unsigned long total_shared_clean, total_shared_dirty, total_private_clean, total_private_dirty;
+ pm_memusage_t total_usage;
+
+ /* command-line options */
+ int ws;
+#define WS_OFF (0)
+#define WS_ONLY (1)
+#define WS_RESET (2)
+ int (*compfn)(const void *a, const void *b);
+ int hide_zeros;
+
+ /* temporary variables */
+ size_t i, j;
+ char *endptr;
+ int error;
+
+ if (argc < 2) {
+ usage(argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+ ws = WS_OFF;
+ compfn = NULL;
+ hide_zeros = 0;
+ for (i = 1; i < (size_t)(argc - 1); i++) {
+ if (!strcmp(argv[i], "-w")) { ws = WS_ONLY; continue; }
+ if (!strcmp(argv[i], "-W")) { ws = WS_RESET; continue; }
+ if (!strcmp(argv[i], "-m")) { compfn = NULL; continue; }
+ if (!strcmp(argv[i], "-p")) { compfn = &comp_pss; continue; }
+ if (!strcmp(argv[i], "-h")) { hide_zeros = 1; continue; }
+ fprintf(stderr, "Invalid argument \"%s\".\n", argv[i]);
+ usage(argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+ pid = (pid_t)strtol(argv[argc - 1], &endptr, 10);
+ if (*endptr != '\0') {
+ fprintf(stderr, "Invalid PID \"%s\".\n", argv[argc - 1]);
+ exit(EXIT_FAILURE);
+ }
+
+ error = pm_kernel_create(&ker);
+ if (error) {
+ fprintf(stderr, "error creating kernel interface -- "
+ "does this kernel have pagemap?\n");
+ exit(EXIT_FAILURE);
+ }
+
+ pagesize = pm_kernel_pagesize(ker);
+
+ error = pm_process_create(ker, pid, &proc);
+ if (error) {
+ fprintf(stderr, "error creating process interface -- "
+ "does process %d really exist?\n", pid);
+ exit(EXIT_FAILURE);
+ }
+
+ if (ws == WS_RESET) {
+ error = pm_process_workingset(proc, NULL, 1);
+ if (error) {
+ fprintf(stderr, "error resetting working set for process.\n");
+ exit(EXIT_FAILURE);
+ }
+ exit(EXIT_SUCCESS);
+ }
+
+ /* get maps, and allocate our map_info array */
+ error = pm_process_maps(proc, &maps, &num_maps);
+ if (error) {
+ fprintf(stderr, "error listing maps.\n");
+ exit(EXIT_FAILURE);
+ }
+
+ mis = (struct map_info **)calloc(num_maps, sizeof(struct map_info *));
+ if (!mis) {
+ fprintf(stderr, "error allocating map_info array: %s\n", strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+
+ /* print header */
+ if (ws == WS_ONLY) {
+ printf("%7s %7s %7s %7s %7s %7s %7s %s\n",
+ "WRss", "WPss", "WUss", "WShCl", "WShDi", "WPrCl", "WPrDi", "Name");
+ printf("%7s %7s %7s %7s %7s %7s %7s %s\n",
+ "-------", "-------", "-------", "-------", "-------", "-------", "-------", "");
+ } else {
+ printf("%7s %7s %7s %7s %7s %7s %7s %7s %s\n",
+ "Vss", "Rss", "Pss", "Uss", "ShCl", "ShDi", "PrCl", "PrDi", "Name");
+ printf("%7s %7s %7s %7s %7s %7s %7s %7s %s\n",
+ "-------", "-------", "-------", "-------", "-------", "-------", "-------", "-------", "");
+ }
+
+ /* zero things */
+ pm_memusage_zero(&total_usage);
+ total_shared_clean = total_shared_dirty = total_private_clean = total_private_dirty = 0;
+
+ for (i = 0; i < num_maps; i++) {
+ mi = (struct map_info *)calloc(1, sizeof(struct map_info));
+ if (!mi) {
+ fprintf(stderr, "error allocating map_info: %s\n", strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+
+ mi->map = maps[i];
+
+ /* get, and sum, memory usage */
+
+ if (ws == WS_ONLY)
+ error = pm_map_workingset(mi->map, &mi->usage);
+ else
+ error = pm_map_usage(mi->map, &mi->usage);
+ if (error) {
+ fflush(stdout);
+ fprintf(stderr, "error getting usage for map.\n");
+ continue;
+ }
+
+ pm_memusage_add(&total_usage, &mi->usage);
+
+ /* get, and sum, individual page counts */
+
+ error = pm_map_pagemap(mi->map, &pagemap, &num_pages);
+ if (error) {
+ fflush(stdout);
+ fprintf(stderr, "error getting pagemap for map.\n");
+ continue;
+ }
+
+ mi->shared_clean = mi->shared_dirty = mi->private_clean = mi->private_dirty = 0;
+
+ for (j = 0; j < num_pages; j++) {
+ mapentry = pagemap[j];
+
+ if (PM_PAGEMAP_PRESENT(mapentry) && !PM_PAGEMAP_SWAPPED(mapentry)) {
+
+ error = pm_kernel_count(ker, PM_PAGEMAP_PFN(mapentry), &count);
+ if (error) {
+ fflush(stdout);
+ fprintf(stderr, "error getting count for frame.\n");
+ }
+
+ error = pm_kernel_flags(ker, PM_PAGEMAP_PFN(mapentry), &flags);
+ if (error) {
+ fflush(stdout);
+ fprintf(stderr, "error getting flags for frame.\n");
+ }
+
+ if ((ws != WS_ONLY) || (flags & PM_PAGE_REFERENCED)) {
+ if (count > 1) {
+ if (flags & PM_PAGE_DIRTY)
+ mi->shared_dirty++;
+ else
+ mi->shared_clean++;
+ } else {
+ if (flags & PM_PAGE_DIRTY)
+ mi->private_dirty++;
+ else
+ mi->private_clean++;
+ }
+ }
+ }
+ }
+
+ total_shared_clean += mi->shared_clean;
+ total_shared_dirty += mi->shared_dirty;
+ total_private_clean += mi->private_clean;
+ total_private_dirty += mi->private_dirty;
+
+ /* add to array */
+ mis[i] = mi;
+ }
+
+ /* sort the array, if requested (compfn == NULL for original order) */
+ if (compfn)
+ qsort(mis, num_maps, sizeof(mis[0]), compfn);
+
+ for (i = 0; i < num_maps; i++) {
+ mi = mis[i];
+
+ if ((!mi) || (hide_zeros && !mi->usage.rss))
+ continue;
+
+ if (ws == WS_ONLY) {
+ printf("%6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %s\n",
+ (long)mi->usage.rss / 1024,
+ (long)mi->usage.pss / 1024,
+ (long)mi->usage.uss / 1024,
+ mi->shared_clean * pagesize / 1024,
+ mi->shared_dirty * pagesize / 1024,
+ mi->private_clean * pagesize / 1024,
+ mi->private_dirty * pagesize / 1024,
+ pm_map_name(mi->map)
+ );
+ } else {
+ printf("%6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %s\n",
+ (long)mi->usage.vss / 1024,
+ (long)mi->usage.rss / 1024,
+ (long)mi->usage.pss / 1024,
+ (long)mi->usage.uss / 1024,
+ mi->shared_clean * pagesize / 1024,
+ mi->shared_dirty * pagesize / 1024,
+ mi->private_clean * pagesize / 1024,
+ mi->private_dirty * pagesize / 1024,
+ pm_map_name(mi->map)
+ );
+ }
+ }
+
+ /* print totals */
+ if (ws == WS_ONLY) {
+ printf("%7s %7s %7s %7s %7s %7s %7s %s\n",
+ "-------", "-------", "-------", "-------", "-------", "-------", "-------", "");
+ printf("%6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %s\n",
+ (long)total_usage.rss / 1024,
+ (long)total_usage.pss / 1024,
+ (long)total_usage.uss / 1024,
+ total_shared_clean * pagesize / 1024,
+ total_shared_dirty * pagesize / 1024,
+ total_private_clean * pagesize / 1024,
+ total_private_dirty * pagesize / 1024,
+ "TOTAL"
+ );
+ } else {
+ printf("%7s %7s %7s %7s %7s %7s %7s %7s %s\n",
+ "-------", "-------", "-------", "-------", "-------", "-------", "-------", "-------", "");
+ printf("%6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %6ldK %s\n",
+ (long)total_usage.vss / 1024,
+ (long)total_usage.rss / 1024,
+ (long)total_usage.pss / 1024,
+ (long)total_usage.uss / 1024,
+ total_shared_clean * pagesize / 1024,
+ total_shared_dirty * pagesize / 1024,
+ total_private_clean * pagesize / 1024,
+ total_private_dirty * pagesize / 1024,
+ "TOTAL"
+ );
+ }
+
+ free(mis);
+ return 0;
+}
+
+static void usage(const char *cmd) {
+ fprintf(stderr, "Usage: %s [ -w | -W ] [ -p | -m ] [ -h ] pid\n"
+ " -w Displays statistics for the working set only.\n"
+ " -W Resets the working set of the process.\n"
+ " -p Sort by PSS.\n"
+ " -m Sort by mapping order (as read from /proc).\n"
+ " -h Hide maps with no RSS.\n",
+ cmd);
+}
+
+int comp_pss(const void *a, const void *b) {
+ struct map_info *ma, *mb;
+
+ ma = *((struct map_info **)a);
+ mb = *((struct map_info **)b);
+
+ if (mb->usage.pss < ma->usage.pss) return -1;
+ if (mb->usage.pss > ma->usage.pss) return 1;
+ return 0;
+}
