Issues.00411 - lordmundi/wikidoctest GitHub Wiki

00411: DCF_ClientConnect function in DCOMM causes high CPU usage

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Summary: DCF_ClientConnect function in DCOMM causes high CPU usage

Created: 2012–02–14 18:02

Status: Released

Category: Bug

From: frankie

Version: 2.2

Released_In: 2.3

Description:

The connect call in DCOMM which blocks while looking for a manager to come up is not sleeping and is causing 100% CPU usage.

To reproduce the error, run "./run_client -novisual" to get a very low CPU weight client and watch the CPU usage go to 100% while it is listening for a manager. Then launch the manager and watch the CPU usage drop down to something reasonable.

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Associated Commits

| commit | 7fd9853d626f6ec8ded7fe00395a2abe64b97ee1 link 5 | || | Author: | Frankie | | Date: | Tue Oct 16 13:45:24 2012 -0500 | | Message: | [@Issue 00447, 00418, 00411: Fixed CPU usage issue, removed prinouts, and updated version string The CPU usage issue was fixed when dcomm was listening for multicast messages from a manager. Also, a few printouts were removed, and some were changed to only print as LogStatus instead of LogWarning. The plugin version string was also updated to be more consistent with the formatting other plugins use. @] |

Affected Files:

lib_Darwin/libd_comm_tc.a              | Bin 484960 -> 487800 bytes
 lib_Linux_FC3/libd_comm_tc.a           | Bin 468592 -> 470234 bytes
 lib_Linux_FC3/libd_comm_tc_s.so        | Bin 322912 -> 324242 bytes
 lib_Linux_FC3_x86_64/libd_comm_tc.a    | Bin 585408 -> 721042 bytes
 lib_Linux_FC3_x86_64/libd_comm_tc_s.so | Bin 385482 -> 335329 bytes
 lib_Win32/libd_comm_tc.dll             | Bin 592830 -> 593391 bytes
 plugin_Darwin/dsp_dcomm_tc.so          | Bin 229056 -> 229160 bytes
 plugin_Linux_FC3/dsp_dcomm_tc.so       | Bin 65468 -> 65782 bytes
 plugin_Win32/dsp_dcomm_tc.dll          | Bin 1008284 -> 1009349 bytes
 9 files changed, 0 insertions(+), 0 deletions(-)

| commit | 71a354170cddf87ec122f28f315f14dce488f3fd link 6 | || | Author: | Frank Graffagnino | | Date: | Tue Oct 16 13:34:52 2012 -0500 | | Message: | [@Issue 00447, 00418, 00411: Fixed CPU usage issue, removed prinouts, and updated version string The CPU usage issue was fixed when dcomm was listening for multicast messages from a manager. Also, a few printouts were removed, and some were changed to only print as LogStatus instead of LogWarning. The plugin version string was also updated to be more consistent with the formatting other plugins use. @] |

Affected Files:

src/dcomm/src/dcomm_client.c | 40 +++++++++++++++++++++++++++++++&plusmn;-------
 src/dcomm/src/dcomm_packet.c |  2 &plusmn;
 src/dcomm/src/dcomm_utils.c  |  4 +&plusmn;-
 src/plugins/dsp_dcomm_tc.c   | 20 +++++++++++++++&plusmn;---
 4 files changed, 51 insertions(+), 15 deletions(-)