[Mono-bugs] [Bug 624849] BlockingCollection<T> takes 100% cpu when blocking for an element

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=624849

https://bugzilla.novell.com/show_bug.cgi?id=624849#c15


Niklas Hofmann <niklas.hofmann at gmx.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |

--- Comment #15 from Niklas Hofmann <niklas.hofmann at gmx.org> 2010-11-13 14:32:26 UTC ---
I compared mcs/class/System/System.Collections.Concurrent/BlockingCollection.cs
of the 2.8 release to
https://github.com/mono/mono/blob/master/mcs/class/System/System.Collections.Concurrent/BlockingCollection.cs
- it is the same file. Conclusion: the bug still exists in mono.

Here is my environment:

* Mono 2.8 release build from source.
* Linux intranet01 2.6.26-2-amd64 #1 SMP Thu Sep 16 15:56:38 UTC 2010 x86_64
GNU/Linux - Running on VMware ESXi 4
* Debian Version 5.0.6 - up to date

Some proc information:

cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 26
model name      : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping        : 5
cpu MHz         : 2666.760
cache size      : 8192 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss syscall nx rdtscp lm
constant_tsc up arch_perfmon pebs bts rep_good pni ssse3 cx16 sse4_1 sse4_2
popcnt lahf_lm ida
bogomips        : 5338.51
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:

cat /proc/meminfo
MemTotal:      1029428 kB
MemFree:        296664 kB
Buffers:        156308 kB
Cached:         368456 kB
SwapCached:          0 kB
Active:         271460 kB
Inactive:       355720 kB
SwapTotal:     1341388 kB
SwapFree:      1340748 kB
Dirty:             260 kB
Writeback:           0 kB
AnonPages:      102476 kB
Mapped:          42220 kB
Slab:            84116 kB
SReclaimable:    75340 kB
SUnreclaim:       8776 kB
PageTables:       8624 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
WritebackTmp:        0 kB
CommitLimit:   1856100 kB
Committed_AS:   470364 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    268220 kB
VmallocChunk: 34359469799 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
HugePages_Surp:      0
Hugepagesize:     2048 kB

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