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Author Topic: (OLD) BFGMiner: modular FPGA/GPU, GBT, Stratum, RPC, Avalon/Lnx/OpnWrt/PPA/W64  (Read 245120 times)
Luke-Jr
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August 09, 2012, 10:33:37 PM
 #181

There is probably a bug with detecting dead GPUs that aren't really dead, so hold off before you take your "dead" GPUs to the shooting range or dumpster. Right now, it's only been confirmed to be a problem with CGMiner, but I hope to have confirmation on whether it affects BFGMiner soon.

Also, it's probably best to verify any SICK or DEAD reports in some other way before getting rid of the device in general.

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August 11, 2012, 01:57:57 AM
 #182

NEW VERSION 2.6.4, AUGUST 11 2012

Human readable changelog:
  • More drastic improvements to ModMiner clock adjustment algorithm. Downclocking should be more conservative, and BFGMiner will even raise the clock speed when it's doing well.
  • ModMiners are now kept busier (less idle time) and nonces are checked against the previous work to catch races. This may result in a higher utility (effective hashrate).
  • Tested and fixed problems managing throttling BitFORCE Singles. An 880 MH/s Single that was throttling to 440 MH/s before (and throwing lots of garbled errors) is now working cleanly at 590 MH/s - a 34% improvement in hashrate!
  • A bunch of annoying crashes were fixed:
    • With high-share devices when network connectivity is lost.
    • GPU mining not functional when any OpenCL platform fails.
    • Occasional deadlock/hang during exit.
  • New --debuglog option to include debug information in log file (see README) but not in main console.
  • The scrypt code was updated - now ALL results from a GPU are checked to see if they're valid and if not, instead of being submitted where they are guaranteed to be rejected, they register as hardware errors. This will make tuning your scrypt parameters easier as HW error count will rise if you've set the parameters too high.
  • Updated miner.php from Kano

Full changelog
  • Bugfix: Define my_cancellable_getch in miner.h
  • Escape " and \ when writing json config file
  • miner.php allow a custom page section to select all fields with '*' - e.g. to create a STATS section on a custom page
  • miner.php optional single rig totals (on by default)
  • Bugfix: Initialize submitting mutex
  • Bugfix: bitforce: Allocate enough space for FTDI description pointers
  • Queue one request for each staged request removed, keeping the staged request count optimal at all times.
  • Bugfix: Avoid cancelling threads while locks are held
  • Set recognizable names on threads for debugging
  • Bugfix: Don't keep making new get_work threads if all pools are dead
  • Enable configuring submission thread limit with --submit-threads option
  • Bugfix: Limit active submission threads to 0x40 so we don't overflow
  • Bugfix: Properly handle switching to pools that aren't on the latest block, and warn if a pool actively switches to an old block
  • Log more details of reasons in stale_work debug messages
  • Failsafe against stale-on-arrival work: disable the pool
  • Bugfix: Debug message should show "Work stale due to work restart" when it's not a share
  • windows-build: Remove APP SDK section since it is no longer needed
  • modminer: HACK: Let last_work handle the end of the work, and start the next one immediately
  • Bugfix: modminer: Remove erroneous "else" statement, to fix hashrate reporting
  • README: Document user group required for FPGAs on Gentoo and Ubuntu
  • BFGMiner-specific README adjustments
  • Bugfix: opencl: Ignore error getting device ids from platforms unless they are explicitly chosen
  • New --debuglog option to include debug info in stderr logfile even if not in the console
  • Bumped down debhelper compatibility reqs so that this will build on Lucid.
  • Updated to match packaging changes.
  • Switched to native packages so we don't have to muck around creating fake upstream tarballs, and can easily generate minor versions for upload to Launchpad.
  • Removed accidentally included debugging line.
  • Minor version bump again because of launchpad. Will sort this out for next release.
  • Updated to patch bitforce module issue on Debian/Ubuntu.
  • Added local quilt config dir to ignore.
  • modminer: Check nonce against previous work, in case of race
  • Bugfix: Enable --kernel-path option if ModMiner or Ztex is enabled (even if no OpenCL)
  • Bugfix: Escape backslashes and double-quotes in strings that rightfully may have them, when writing JSON config file
  • Clean object (.o) and dependency (.d) files out of source tree
  • Bugfix: bitforce: Don't count hashes that never happened due to throttling
  • Bugfix: Deal with serial_open timeout maximum (25.5s)
    • fpgautils: Linux only supports uint8_t decisecond values for timeouts, so use uint8_t for timeout value; this gets smart compilers to throw warnings when overflowed in some cases
    • bitforce: Reduce serial timeout to 25 seconds (was 30) and increase job long timeout to 25 seconds (was 15) to handle throttling gracefully
  • modminer: Add debug info to API extra device stats
  • modminer: Raise clock speed when there's only good nonces for a while
  • modminer: Only print clock speed adjustments when they actually change
  • modminer: Increase tolerance for bad nonces to 2%
  • modminer: Reset bad-nonce ratio measurement when the clock speed changes
  • Bugfix: bitforce: Include the correct device id in "garbled response" warning
  • ADL: Add attribution and disclaimer to interfaces
  • Cleaned out refs to AMD SDKs.
  • Updated README about debian packaging, changelog with minor version bump to work around Launchpad reqs.
  • Updated changelog with Ubuntu release specific version, needed to build for multiple releases. Also stripped out ADL SDK stuff in the build rules.
  • Initial work to adjust debian packaging from cgminer. Should build correctly now with pbuilder/pdebuild, and include docs.
  • Adapt miner code to free ADL structures
  • Import free ADL interfaces
  • Include scrypt.h in Makefile.
  • Fix windows bitforce build.
  • Convert the serial autodetect functions to use int instead of char to enumerate devices.
  • Deuglify windows autodetect code for BFL.
  • There is no point zeroing temperature in BFL if we fail to get a response, and we should register it as a HW error, suggesting throttling.
  • Update SCRYPT README with information about HW errors.
  • Use the scrypt CPU code to confirm results from OCL code, and mark failures as HW errors, making it easier to tune scrypt parameters.
  • We may as well leave one curl still available per pool instead of reaping the last one.
  • Display reaped debug message outside mutex lock to avoid recursive locking.
  • api.c update API start message and include port number
  • miner.php ignore arg when readonly
  • miner.php allow pool inputs: delete, addpool, poolpriority
  • bitforce: Reopen on communication error
  • Bugfix: Calculate hw err percent for the affected FPGA only
  • make-release: Adapt to new autogen by using NOCONFIGURE var

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August 13, 2012, 09:01:30 AM
 #183

This looks like an interesting mining software.
Is there support for the X6500 (rev2 & rev3) planned?

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August 13, 2012, 03:23:56 PM
 #184

This looks like an interesting mining software.
Is there support for the X6500 (rev2 & rev3) planned?
Planned, as soon as nelisky ships the X6500 he was given to do it (long story), but he's been unresponsive.

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August 15, 2012, 07:36:33 PM
 #185

There are a few issues with the Ztex driver, and since it seems Nelisky has disappeared, I think it would be a good idea to order one of each for myself so that I can maintain it properly.

If anyone with Ztex boards would like to donate toward this goal, I have setup an address: 1HcJMz6iTMcBS5NxzRqM5UpTAnC9fmuQqs

Regardless of whether you donate personally, please do report any issues you have with BFGMiner or any of its drivers.

Disclosure: ZTEX GmbH offered a generous discount for development use, and I have already ordered the Ztex boards on my own. Donations are to help cover the direct cost to me, since this is mainly for others' benefit.

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August 21, 2012, 12:26:07 AM
 #186

NEW VERSION 2.6.5, AUGUST 20 2012

I expect to follow-up with 2.7.0 soon, but first here is a 2.6.5 with just the bugfixes and less risky changes.

Human readable changelog:
  • New BitFORCE firmware flash utility for Linux (only). When compiled with BitFORCE support, run bitforce-firmware-flash to get usage.
  • Fixed hanging when using "Switch User" on Windows. This feature still kills ADL, though, so use --no-restart (and don't enable fan control or overclocking) if you plan to use it.
  • Fixed dynamic mode on Windows. By default, Windows timer resolution is only 15ms and we're trying to sample much smaller than that. This was leading to the time taken to do GPU work appearing as zero for many samples. Now, a Windows multimedia timing API will be used to request more precision.
  • gpu-memdiff should now take effect when you change gpu engine clock from the menu as well.
  • The ADL gpu-map feature should work now when you have more ADL devices than OpenCL (eg, ATI cards that don't support OpenCL).
  • More tweaks to the queueing mechanism to increase efficiency and keep minirigs fully work laden.
  • Failover-only can now be changed via the RPC API.
  • Updated miner.php from Kano

Full changelog
  • API new command 'coin' with mining information
  • Add message to share if it's a resubmit.
  • Add virtual adl mapping for when none is specified on the command line to not crash without a map specified.
  • Fix ADL gpu-map not working when there are more ADL devices than openCL. Patch supplied and tested by Nite69.
  • bitforce: Initial import of Linux-only bitforce-firmware-flash utility
  • Revert stale-on-arrival failsafe, since it ends up needing exceptions for everything
  • Bugfix: opencl: Declare opencl_dynamic_cleanup in header
  • Even if we want to submit stale shares, give up if we have more submissions waiting on threads (even before failing)
  • Even if we want to submit stale shares, give up if they've failed and we have more submissions waiting on threads
  • opencl: Use timeBeginPeriod on Windows to ensure gettimeofday has sufficient precision for dynamic intensity
  • Bugfix: opencl: Move ADL fanspeed warning messages to a new thread to get around summary-update deadlocking
  • README: Note that user groups don't get updated until re-login
  • Initialise cnt in libztex.c
  • Don't try to start devices that don't support scrypt when scrypt mining.
  • Repeating on timeout in ztex could make the code never return.
  • Offset libusb reads/writes by length written as well in ztex.
  • Cope with timeouts and partial reads in ztex code.
  • If there are more devices than nDevs, don't iterate over them as they may overwrite devices mapped below that with the mapping option.
  • Fix README faq on bfl auto-detect.
  • Set memory clock based on memdiff if present from with engine changes, allowing it to parallel manual changes from the menu as well.
  • api.c typo
  • API allow display/change failover-only setting
  • API-README corrections
  • miner.php documentation (in API-README) v0.1
  • Bugfix: opencl: Show blank device-info statline area if GPU doesn't have ADL, to fix column alignment
  • README: Document usage of 0 to indicate "leave at default" for comma-delimited GPU options
  • Correct API-README versions to match when BFGMiner included them
  • API-README update changelog
  • Minimise locking and unlocking when getting counts by reusing shared mutex lock functions.
  • Avoid getting more work if by the time the getwork thread is spawned we find ourselves with enough work.
  • The bitforce buffer is cleared and hw error count incremented on return from a failed send_work already so no need to do it within the send_work function.
  • Don't make mandatory work and its clones last forever.
  • modminer: Log debug info for nonces found

kano
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August 21, 2012, 02:14:46 AM
 #187

...
README: Note that user groups don't get updated until re-login
...
Smiley

(and your git is not 2.6.5)

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August 21, 2012, 02:24:31 AM
 #188

NEW VERSION 2.7.0, AUGUST 21 2012

Besides the recent BFGMiner 2.6.5 improvements, this is just changes merged in from CGMiner. Unlike CGMiner 2.7.0, however, this does not include the "Work Utility" number, since it is both misleading (because it doesn't account for stales as Utility does) and redundant (BFGMiner's utility-hashrate, the 3rd hashrate column, shows a correct measurement based on accepted shares regardless of target). I contemplated adding a Weighed Utility to show a similar (but correct) number, but IMO this would just lead to uninformed attempts to compare it with CGMiner's "Work Utility" and not be of any practical use.

Human readable changelog:
  • The main change in this version is a complete rewrite of the getwork requesting mechanism. Con had been slowly hacking away at the old one for some time, but finally gave up in disgust and has rewritten it to some extent. Previously, mining threads would occasionally throw out a request for more work, some arbitrary test would be done on whether more work should be requested, and it handed off the message to another thread which spawned another thread and that then sent the request and so on. Worse yet it was hard to find the right place to reuse work and so it was never reused to its utmost potential. The rewrite involves scheduling a new request based on the rate the old work items get used up, and is much better at predicting when it needs to leak work to backup pools and less likely to throw a "pool is not providing work fast enough" message. Overall you should now see much more Local Work (LW), the efficiency will be higher on pools that support rolltime, less work will be discarded, any magnitude
    rig will be kept solidly busy - note this MAY mean your overclocks will become that much more stressed if you have set clocks very aggressively. Thanks to Con and the numerous people who tested this during its development phase. For many of you, you'll be wondering what the fuss is about cause it will just appear as business as usual.
  • New pool strategy: Balance.
    --balance           Change multipool strategy from failover to even share balance
    This is to differentiate itself from the existing pool strategy, Load balance:
    --load-balance      Change multipool strategy from failover to efficiency based balance
  • With the change to queueing and more roll work being possible than ever before, the imbalance between pools that support rolltime and those that don't will now be extreme in load balance strategy. To offset that, and since the number of people using load balance has been increasing, the new strategy was added to try and give roughly the same number of shares to each pool.
  • Other minor bugfixes.

Full changelog
  • Implement a new pool strategy, BALANCE, which monitors work performed per pool as a rolling average every 10 minutes to try and distribute work evenly over all the pools. Do this by monitoring diff1 solutions to allow different difficulty target pools to be treated equally, along with solo mining. Update the documentation to describe this strategy and more accurately describe the load-balance one.
  • fpga serial I/O extra debug (disabled by default)
  • Getwork fail was not being detected. Remove a vast amount of unused variables and functions used in the old queue request mechanism and redefine the getfail testing.
  • Consider us lagging only once our queue is almost full and no staged work.
  • Simplify the enough work algorithm dramatically.
  • Only queue from backup pools once we have nothing staged.
  • Don't keep queueing work indefinitely if we're in opt failover mode.
  • Make sure we don't opt out of queueing more work if all the queued work is from one pool.
  • Set lagging flag if we're on the last of our staged items.
  • Reinstate clone on grabbing work.
  • Grab clones from hashlist wherever possible first.
  • Cull all the early queue requests since we request every time work is popped now.
  • Keep track of staged rollable work item counts to speed up clone_available.
  • Make expiry on should_roll to 2/3 time instead of share duration since some hardware will have very fast share times.
  • Check that we'll get 1 shares' worth of work time by rolling before saying we should roll the work.
  • Simplify all those total_secs usages by initialising it to 1 second.
  • Overlap queued decrementing with staged incrementing.
  • Artificially set the pool lagging flag on pool switch in failover only mode as well.
  • Artificially set the pool lagging flag on work restart to avoid messages about slow pools after every longpoll.
  • Factor in opt_queue value into enough work queued or staged.
  • Roll work whenever we can on getwork.
  • Queue requests for getwork regardless and test whether we should send for a getwork from the getwork thread itself.
  • Get rid of age_work().
  • Don't try to get bitforce temperature if we're polling for a result to minimise the chance of interleaved responses.
  • Fix harmless unused warnings in scrypt.h.
  • Check we are not lagging as well as there is enough work in getwork.

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August 21, 2012, 04:15:32 AM
 #189

FYI - it is called Work Utility coz it is "Work Utility" i.e. work that is done - which of course is independent of if the work was accepted by the pool or not.

You are confusing that with "Share Utility" "U:" which of course is the number of shares accepted (i.e. excludes rejects etc)

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August 21, 2012, 04:49:30 PM
 #190

NEW VERSION 2.7.1, AUGUST 21 2012

Just some fixes from Con and Kano that didn't make the 2.7.0 cut, plus updates to the Windows build instructions from Sharky.

Human readable changelog:
  • The occasional strange behaviour where lots of work would end up on backup pools in failover mode should be fixed.
  • The occasional scenario where one pool dies and the others behave like they're slow to provide work should be fixed.
  • Very high hashrate (U > 100) machines should now be able to work unhindered even on pools that don't support rolltime.
  • The --retry-pause/-R option no longer does anything and is deprecated in preference for faster communications and simpler code.
  • -r was removed as a shortcut for --retries.
  • Hopefully the dynamic mode for GPUs is fixed on windows.
  • Hopefully the 7 day windows crash bug has been fixed

Full changelog
  • Update windows build instructions courtesy of sharky.
  • Increase max curls to number of mining threads + queue * 2, accounting for up and downstream comms.
  • Queue enough requests to get started.
  • There is no point trying to clone_work in get_work() any more since we clone on every get_work_thread where possible.
  • There is no point subtracting 1 from maxq in get_work_thread.
  • miner.php allow page title to be defined in myminer.php
  • Only set lagging flag once there are no staged work items.
  • select_pool does not switch back to the primary once lagging is disabled.
  • Increment total work counter under mutex lock.
  • Increment the queued count after the curl is popped in case there's a delay waiting on curls and we think we've queued work when in fact we're waiting on curls.
  • Do the dynamic timing in opencl code over a single pass through scanhash to make sure we're only getting opencl times contributing to the measured intervals.
  • Increase curl reaping time to 5 minutes since comms between  curl requests can be 2 mins apart with lots of rolltime.
  • No need for extra variable in hash_push.
  • Remove short options -r and -R to allow them to be reused and remove readme entries for deprecated options.
  • Deprecate the opt_fail_pause parameter, leaving a null placeholder for existing configurations.
  • Free work before retrying in get_work_thread.
  • Don't pause after failed getwork, set lagging flag and reassess.
  • We should not be pausing in trying to resubmit shares.
  • Get rid of the extending fail pause on failed connects since we discard work after a period.
  • get_work always returns true so turn it into a void function.
  • get_work never returns false so get rid of fail pause loop.
  • Get rid of pause and retry from get_upstream_work so we only do it from one place.
  • Remove all cases where --retries aborts BFGMiner, making it for submission retries only, where it makes sense.

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August 23, 2012, 08:13:30 AM
 #191

NEW VERSION 2.7.3, AUGUST 23 2012

Human readable changelog:
  • Fix new networking code.
  • OpenCL: New kernels.
  • Updated miner.php

Full changelog
  • Minimise the number of getwork threads we generate.
  • Pick worksize 256 with Cypress if none is specified.
  • Give warning with sdk2.7 and phatk as well.
  • Whitelist sdk2.7 for diablo kernel as well.
  • Only keep the last 6 blocks in the uthash database to keep memory usage constant. Storing more is unhelpful anyway.
  • Increase kernel versions signifying changed APIs.
  • BFL flash - more FPGA-README
  • Check we haven't staged work while waiting for a curl entry before proceeding.
  • Use atomic ops to never miss a nonce on opencl kernels, including nonce==0, also allowing us to make the output buffer smaller.
  • Remove compile errors/warnings and document compile/usage in FPGA-README
  • Ignore the submit_fail flag when deciding whether to recruit more curls or not since we have upper bounds on how many curls can be recruited, this test is redundant and can lead to problems.
  • API-README update cgminer version number
  • API-README fix groups P: example mistake
  • API-README add COIN and other edits
  • miner.php allow 'coin' is custom pages

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August 23, 2012, 09:45:51 AM
 #192

Temporary hack to fix 2.7.3 with StreamSDK 2.1:
1) Figure out which *.cl file you use, and open it in a PLAIN text editor (eg, Notepad - NOT Wordpad!)
2) Add to the very top:
Code:
#pragma OPENCL EXTENSION cl_khr_global_int32_base_atomics : enable
3) Find and replace every instance of "atomic_add" with "atom_add"

Note that this seems to still have a 2 MH/s (on 5850) performance hit.

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August 23, 2012, 10:21:57 PM
 #193

NEW VERSION 2.7.4, AUGUST 23 2012

2.6.6 is also released with more backported fixes.

Human readable changelog:
  • More fixes.

Full changelog
  • Perform select_pool even when not lagging to allow it to switch back if needed to the primary.
  • Simplify macros in output kernels avoiding apparent loops and local variables.
  • Carry the needed bool over the work command queue.
  • Move the decision to queue further work upstream before threads are spawned based on fine grained per-pool stats and increment the queued count immediately.
  • Track queued and staged per pool once again for future use.
  • OpenCL 1.0 does not have native atomic_add and extremely slow support with atom_add so detect opencl1.0 and use a non-atomic workaround.
  • Pools: add RollTime info to API 'stats' and 'Stats' button in miner.php

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August 24, 2012, 09:17:44 PM
 #194

Just wanted to say that the bitforce-firmware-flash utility works like a charm under Xubuntu 12.04.1.

Thanks Luke-Jr.
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August 27, 2012, 06:24:24 AM
 #195

Does the "restart BFGMiner when ADL fails" function do anything useful for anyone? I understand it was an attempt to workaround ADL/driver bugs, but I'm told that it never helped. On the other hand, it breaks when used with "Switch User" or some "hwinfo64" tester on Windows. If it doesn't do anything useful, I'll plan to remove it for 2.7.5, which I hope to release later today (so tell me ASAP if you need this!).

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August 27, 2012, 05:25:24 PM
 #196

NEW VERSION 2.7.5, AUGUST 27 2012

Human readable changelog:
  • ModMiner: Revamped the dynamic clocking algorithm to keep FPGAs at higher speeds with fewer hardware errors.
  • OpenCL: Restored old default for Cypress (Radeon 58xx) worksize, to fix performance regression introduced in 2.7.2.
  • Failover is now fixed, courtesy of Con.
  • FPGAs: "-S all" option to try probing all enumerated serial ports on systems without non-miner serial devices.
  • Reverted "restart on ADL failure" feature that never did anything useful (if I'm wrong, complain and I'll make a switch to add it back)

Full changelog
  • Revert "Do a complete cgminer restart if the ATI Display Library fails, as it does on windows after running for some time, when fanspeed reporting fails."
  • Stop special-casing worksize default to 256 for Cypress, since it incurs a 5 MH/s hit with stock config
  • New "--scan-serial all" feature to probe all enumerated serial ports
  • modminer: Revamp dynamic clocking algorithm per request from cablepair
  • Test for lagging once more in queue_request to enable work to leak to backup pools.
  • There is no need to try to switch pools in select_pool since the current pool is actually not affected by the choice of pool to get work from.
  • Only clear the pool lagging flag if we're staging work faster than we're using it.
  • needed flag is currently always false in queue_request. Remove it for now.
  • thr is always NULL going into queue_request now.
  • Fix for non-ADL OpenCL device formatting issue

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August 28, 2012, 12:36:41 AM
 #197

NEW VERSION 2.7.5, AUGUST 27 2012

Human readable changelog:
  • ModMiner: Revamped the dynamic clocking algorithm to keep FPGAs at higher speeds with fewer hardware errors.
  • OpenCL: Restored old default for Cypress (Radeon 58xx) worksize, to fix performance regression introduced in 2.7.2.
  • Failover is now fixed, courtesy of Con.
  • FPGAs: "-S all" option to try probing all enumerated serial ports on systems without non-miner serial devices.
  • Reverted "restart on ADL failure" feature that never did anything useful (if I'm wrong, complain and I'll make a switch to add it back)

Full changelog
  • Revert "Do a complete cgminer restart if the ATI Display Library fails, as it does on windows after running for some time, when fanspeed reporting fails."
  • Stop special-casing worksize default to 256 for Cypress, since it incurs a 5 MH/s hit with stock config
  • New "--scan-serial all" feature to probe all enumerated serial ports
  • modminer: Revamp dynamic clocking algorithm per request from cablepair
  • Test for lagging once more in queue_request to enable work to leak to backup pools.
  • There is no need to try to switch pools in select_pool since the current pool is actually not affected by the choice of pool to get work from.
  • Only clear the pool lagging flag if we're staging work faster than we're using it.
  • needed flag is currently always false in queue_request. Remove it for now.
  • thr is always NULL going into queue_request now.
  • Fix for non-ADL OpenCL device formatting issue


Aren't most of the changes above taken from Conman's git comments when he committed the changes in the cgminer repository?
cablepair
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August 28, 2012, 12:39:50 AM
 #198

Define Most...


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Failover is now fixed, courtesy of Con.

some of the changes are in regards to the ModMiner quad which cgminer (unfortunately) does not keep up on.
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August 28, 2012, 01:06:03 AM
 #199

NEW VERSION 2.7.5, AUGUST 27 2012
Aren't most of the changes above taken from Conman's git comments when he committed the changes in the cgminer repository?
Five of the ten commits between 2.7.4 and 2.7.5 are, as attributed, written by Con to fix bugs he had introduced, yes - so that's half if you're just counting commits. Line-wise, it's probably less than half. I can't even speculate on time spent. Unfortunately, I can't even speculate on "man-time spent" statistics.

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August 28, 2012, 02:11:44 AM
 #200

NEW VERSION 2.7.5, AUGUST 27 2012
Aren't most of the changes above taken from Conman's git comments when he committed the changes in the cgminer repository?
Five of the ten commits between 2.7.4 and 2.7.5 are, as attributed, written by Con to fix bugs he had introduced, yes - so that's half if you're just counting commits. Line-wise, it's probably less than half. I can't even speculate on time spent. Unfortunately, I can't even speculate on "man-time spent" statistics.

All 5 of them to do with fixing bugs in the new MUCH improved getwork scheduler that ckolivas/conman wrote completely himself and you had nothing to do with at all ... but it is now part of your copy miner.

... and you have the gall to make that implication ...

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