Commit graph

9 commits

Author SHA1 Message Date
Mark Salyzyn
95108f1844 logd: improve details on chatty records
(Cherry pick from commit 21fb7e0b75)

- Report applications UID, TID/PID by name.
- change wording to have an accurate connotation
- drop privilege check since filtered upstream

Bug: 19608965
Bug: 20334069
Bug: 20370119
Change-Id: I2b1c26580b4c2de293874214ff5ae745546f3cca
2015-04-30 15:25:12 -07:00
Mark Salyzyn
ae76923839 logd: disable worst uid prune for events buffer
There is some usage statistics that would be hurt by pruning by UID,
since _all_ usage statistics come from system_server. In other words
we expect it to be chatty. Until we formulate and evaluate a better
(eg: per-tag?) filtration mechanism, lets hold off pruning by UID.

Bug: 19608965
Change-Id: Iddd45a671e13bdcf3394c20919ad1f2e4ef36616
2015-04-10 15:45:10 -07:00
Mark Salyzyn
ab0dcf6828 logd: annotate worst-UID pruned entries
- internal dropped entries are associated by prune by worst UID
  and are applied by UID and by PID
- track dropped entries by rewriting them in place
- merge similar dropped entries together for same UID(implied),
  PID and TID so that blame can more clearly be placed
- allow aging of dropped entries by the general backgound pruning
- report individual dropped entries formatted to reader
- add statistics to track dropped entries by UID, the combination
  of statistics and dropped logging can track over-the-top Chattiest
  clients.

Bug: 19608965
Change-Id: Ibc68480df0c69c55703270cd70c6b26aea165853
2015-04-10 15:45:08 -07:00
Mark Salyzyn
08739ba71f logd: uidToName improvement
- read packages.list to acquire package names
- hijack the reinit handler as a privileged worker

Bug: 19608965
Change-Id: If7becb34354d6415e5c387ecea7d4109a15259c9
2015-04-08 14:47:54 -07:00
Mark Salyzyn
97c1c2beee logd: optimize statistics
- Go back to basic requirements
- Simplify
- use hash tables to minimize memory impact

Bug: 19608965
Change-Id: If7becb34354d6415e5c387ecea7d4109a15259c8
2015-03-20 12:31:23 -07:00
Mark Salyzyn
f7c0f75275 logd: replace internal CLOCK_MONOTONIC use with sequence numbers
- switch to simpler and faster internal sequence number, drops
  a syscall overhead on 32-bit platforms.
- add ability to break-out of flushTo loop with filter return -1
  allowing in reduction in reader overhead.

Change-Id: Ic5cb2b9afa4d9470153971fc9197b07279e2b79d
2015-03-18 12:43:23 -07:00
Mark Salyzyn
b992d0d7d3 logd: liblog: Thread IDs missing from logcat -v thread
- stuff caller's thread id into the packet.

Bug: 13568206
Change-Id: I02d0cdf9b1d9e839ff8969f591db42dfe6e4cc95
2014-03-21 10:37:44 -07:00
Mark Salyzyn
7e2f83c0bc logd: liblog: 64-bit issues
- structure packing
- move towards log_time from struct timespec
- extend log_time to cover differences between
  log_time and struct timespec

Change-Id: I106ed0b609917306d170044054b5b32645f2a295
2014-03-05 16:12:28 -08:00
Mark Salyzyn
0175b0747a logd: initial checkin.
* Create a new userspace log daemon for handling logging messages.

Original-Change-Id: I75267df16359684490121e6c31cca48614d79856
Signed-off-by: Nick Kralevich <nnk@google.com>

* Merge conflicts
* rename new syslog daemon to logd to prevent confusion with bionic syslog
* replace racy getGroups call with KISS call to client->getGid()
* Timestamps are filed at logging source
* insert entries into list in timestamp order
* Added LogTimeEntry tail filtration handling
* Added region locking around LogWriter list
* separate threads for each writer
* /dev/socket/logd* permissions

Signed-off-by: Mark Salyzyn <salyzyn@google.com>

(cherry picked from commit 3e76e0a497)

Author: Nick Kralevich <nnk@google.com>
Change-Id: Ice88b1412d8f9daa7f9119b2b5aaf684a5e28098
2014-02-26 09:52:35 -08:00